One of the biggest new features EXE3 adds to the series is the Navi Customizer. Throughout the game you will collect blocks that grant specific special abilities and enhancements and all you need to do to reap their benefits is to fit them onto the NaviCust grid according to the rules.

The NaviCust grid starts out small, but you gain the extra column and row with the two ExpMemory items. One is a gift from Dr.Hikari in an e-mail in Chapter 4. The other is the reward for the Chapter 7 board request "Catching gang members".

You first gain the NaviCust in Chapter 2 along with three free blocks and the tutorial there gives you the basics on how to place those blocks (Programs or Parts) on the grid (Memory Map). You're also given the three rules that determine a flawless setup.

1. Program Parts (solid color) should have at least one square on the Command Line (the third row of the grid).
2. Plus Parts (square-pattern) should NOT have any squares on the Command Line.
3. Parts of the same color should not touch.

The last rule you're given at this stage is a little different. The colors in the upper right corner of the Memory Map are the guide to which color blocks you're allowed to use. You can always use the default three colors white, pink, and yellow, and you can use one additional color based on the type of Style you have. If you put down any other color you won't create a "bug", but rather an "error", which will stop you from starting Megaman back up again until you do something about the error.

Originally, you'll be forced to remove the block of the unallowed color, but in Chapter 4 you'll have the option to buy "ModTools" from the Netopian guy at Beach St. for the one-time cost of 5600Z. With the ModTools, you can press Select when a NaviCust Run spits out an error and enter in a special code to make the error go away so you can continue playing with the otherwise unallowed block. Most blocks that come in the non-default colors are associated with the Styles that birthed them, so these ModCodes are key to mixing abilities across different Styles. There are also a few special blocks with colors not associated with any Style, meaning you would have to use the ModCodes if you want to use them at all. Then there's the well-kept secret that you can use the ModTools to enter a code when there is no error and gain additional enhancements - but these "Extra Codes" are even more obscure than the ModCodes, and you're going to need a strategy guide to know them all either way.

Another obscure secret attached to the NaviCust is the "Compression Code". With almost every Program Parts block you can highlight it on the Parts list, hold Select, and then enter a unique controller key code that permanently removes one of the squares, making the block slightly easier to fit into the grid along with other reduced blocks. Getting all of these codes is something else you can't get just from playing the game.

One more thing to know about NaviCust to allow you to use it properly: Spin items! You can pick up a few of these in Mystery Data throughout the game, but you'll need the right lotto numbers to put into the Number Trader for others. Each item lets you rotate the specified color of NaviCust block with the L and R buttons. So with SpinWhite you can spin white blocks, etc. These are important upgrades to amass if you want to really fit as many blocks into a good NaviCust setup as possible (and to further the obvious similarites to Tetris, for that matter).

Now to go over the actual NaviCust blocks, what they do, how to acquire them, what they look like, their Compression Codes and the square that disappears when the code is entered, the associated Error code for those of the non-standard colors, and the bugs that can arise from entering it incorrectly.

Shape and Compression	Name	Acquired	Description	Error	Bugs
	SuperArmor	Guts Style Lv.2	Megaman will not flinch from enemy attacks, allowing you to get hit without it affecting your own actions or Busting Level.	A1	Move Bug
	BreakBuster	Guts Style Lv.3	Normal buster shots will have the breaking effect, damaging shielded enemies.	A2	Shot Bug
	BreakCharge	Guts Style Lv.4(Red), Ch4 TV Station kiosk man(Orange)	Charged buster shots will have the breaking effect, damaging shielded enemies.	A3	Charge Bug
	SetGreen	Ground Style Lv.2	At the start of battle, all panels that would have otherwise been normal will instead be grass. This does not affect panels that would have been something other than normal. For instance, in the first Desertman battle, your side of the field will be grass, but Desert's side will still be sand.	B1	Stage Bug
	SetIce	Ground Style Lv.3	Sets panels to ice. Same principle as above.	B2	Stage Bug
	SetLava	Ground Style Lv.4	Sets panels to lava. Same principle as above. Careful with this one.	B3	Stage Bug
	SetSand	Number Trader 19878934	Sets panels to sand. Same principle as above.	B4	Stage Bug
	SetMetal	UnderSquare Program Dealer 5000Z	Sets panels to metal. Same principle as above.	B5	Stage Bug
	SetHoly	Ground Style Lv.5	Sets panels to holy. Same principle as above...except it only affects YOUR side of the field, thankfully.	B6	Stage Bug
	Custom1	Custom Style Lv.2(Blue) and Lv.3(Yellow)	Custom Style effect. Custom screen has one more chip to choose from than usual. The normal default is five, so with one of these installed you will get six to choose from each turn.	C1	Custom Poison
	Custom2	Custom Style Lv.4	Custom screen has two more chips to choose from than usual. Same principle as above.	C2	Custom Poison
	MegaFolder1	Team Style Lv.2(Green) and Lv.3(Pink)	Team Style effect. You can put one more MegaChip than you usually can in your folder. The default is five, so with one of these installed you can have six MegaChips in your folder.	E1	Custom Poison
	MegaFolder2	Team Style Lv.4	You can put two more MegaChips than usual in your folder. Same principle as above.	E2	Custom Poison
	Block	Shield Style Lv.2	Press left+B in battle to make Megaman make a defensive move. For a split-second if he's hit with a any attack, the damage will be halved.	F1	Move Bug
	Shield	Shield Style Lv.3	Press left+B in battle to make Megaman briefly raise a shield. Same principle as Block but the damage will be nullified instead of just halved. Also unlike Block, it will be completely ineffective against breaking attacks. If you have Shield Style while this is equipped and raise the Shield juuust before the enemy's hit connects, then you don't just nullify the damage, you recover 100HP as well!	F2	Move Bug
	Reflect	Shield Style Lv.4	Press left+B in battle to make Megaman briefly raise a reflective shield that looks suspiciously like Protoman's shield. Like Shield, it's useless against breaking attacks, but otherwise will not only nullify the damage, but instantly counter-attack the first target in MM's row, dealing 100 points of damage. As above, if you have Shield Style and cut things as close as possible before raising the shield, you will recover 100HP in addition to performing the counter-attack.	F3	Move Bug
	ShadowShoes	Shadow Style Lv.2	Move over cracked panels without breaking them.	H1	Move Bug
	FloatShoes	Shadow Style Lv.3	Move over almost any panel without incurring the negative effects. This includes not being hurt by lava, not slipping on ice, not being slowed down by sand, and not breaking cracked panels (so it basically makes the above program obsolete). Unfortunately it will not prevent swamp from poisoning you or allow you to walk over holes (you still need AirShoes for that). Fortunately it will not prevent positive effects like Wood Styles healing on grass or half-damage on holy panels.	H2	Move Bug
	AntiDamage	Shadow Style Lv.4	Press left+B in battle to make Megaman briefly set a defensive trap, similar to the Shield Style programs. If MM is hit by any attack in the split-second the trap-indicating "????" is in the upper-left corner, the damage will be nullified and he will counter-attack by throwing a 100 dmg shuriken at the enemy. More versatile than Shield and Reflect, but requires even better timing as the duration is less than half, and the counter-attack is slower.	H3	Move Bug
	Press	Chapter 3	Allows Megaman to shrink and cross the thin rails found throughout the game.	N/A	Poison
	EnergyChange	Chapter 5	Allows Megaman to remove certain obstacles by inspecting them and sacrificing a valid battlechip to destroy them. Remove the vines and trees in Chapter 5's Hospital System with fire-elemental chips, and remove the flames throughout the net in Chapter 6 with aqua-elemental chips. After that, this program is no longer needed.	N/A	Poison
	AlphaScope	Chapter 8	Allows you to see the otherwise invisible Alpha traps in the WWW AutoTank systems at the end of the game.	N/A	Poison
	SneakRun	Ch.2 ZooComp3 BMD	Same effect as the SneakRun SubChip, avoid random encounters except against strong or rare enemy encounters (such as navi ghosts or their associated viruses)	N/A	Encounters Up
	OilBody	Ch.5 HospComp1 BMD	Random encounters will feature fire-elemental enemies if there are any in the area. No effect if the area has no fire-elemental encounters.	N/A	Encounters Up
	Fish	BeachSquare Program Dealer 8000Z	Attract aqua-elemental enemy encounters. Same principle as above.	N/A	Encounters Up
	Battery	UnderSquare Program Dealer 8000Z	Attract elec-elemental enemy encounters. Same principle as above.	N/A	Encounters Up
	Jungle	Ch.8 WWWComp3 BMD	Attract wood-elemental enemy encounters. Same principle as above.	N/A	Encounters Up
	Collect	Ch.8 WWW Base WallComp BMD	Removes the possibility of winning zenny from battles, thus guaranteeing you will win a battlechip. Battles that do not award chips (Bosses, AlphaBug, Numbers) will instead give you nothing.	N/A	Opposite Effect
	AirShoes	Number Trader 23415891	Same effect as the AirShoes chip. Move over holes and broken panels as if they were solid ground.	N/A	Move Bug
	UnderShirt	Comes with NaviCust	Same effect as the discontinued UnderShirt chip. Taking a hit that would have otherwise been lethal will instead reduce you to 1HP as long as your HP is greater than 1.	N/A	Move Bug
	FastGauge	Number Trader 67918452	Same effect as the FastGauge chip. The Custom Gauge will fill twice as fast.	N/A	Opposite Effect
	Rush Support	Undernet6 BugFrag-Program Trader 100BF	Only works in Link Battles, once per battle. Effectively an Anti-Invis trap. If the opponent uses some form of invisibility (Invis, Shadow, or Mole), Rush will pop up and bite his face off, cancelling the invis and momentarily paralyzing the enemy.	N/A	Null Effect
	Beat Support	UnderSquare Program Dealer 10000Z	Only works in Link Battles, once per battle. Effectively an Anti-MegaChip trap. If the opponent attempts to use a Mega or Giga class chip, Beat will swoop down and snatch it away from them.	N/A	Null Effect
	Tango Support	UnderSquare Program Dealer 10000Z	Only works in Link Battles, once per battle. When your health reaches critical levels, Tango will drop down and give you a Recov300 and a Barrier100.	N/A	Null Effect
	WeaponLevel+1	Number Trader 41465278 (White), Hades Demon BMD(Pink), Under6 BMD(Yellow)	Increases your Weapon Level, allowing your elemental charge attack to do more damage (Normal Style Charge attack is based on Atk+1 instead). There are three of these in the game, but usually you only need two because the Weapon Level starts at 1 and only goes up to 3. The only situation when three of these installed makes sense is with Shadow Style, because the Invis charge acts as Weapon Level 0 and installing one brings it up to Level 1 of usual charge attack for the style's element, thus it takes three to get to the max.	N/A	Charge Bug
	HP+100	ZooComp4 BMD(Yellow), Van Relay BMD(Pink), Under6 Programs 50BF(White)	Increases Megaman's max HP by 100.	N/A	Poison
	HP+200	Under1 WWW-ID BMD (Pink), Under6 Programs 80BF (Yellow)	Increases Megaman's max HP by 200. Only two of these can be acquired in the game, though a white one also exists in the data.	N/A	Poison
	HP+300	UnderSq Programs 20000Z (Pink)	Increases Megaman's max HP by 300. Only the pink one can be acquired in the game, though the other two exist in the data.	N/A	Poison
	HP+500	Secret2 after completing all requests (Yellow)	Increases Megaman's max HP by 500. Only the yellow one can be acquired in the game, though the other two exist in the data.	N/A	Poison
	Reg+5	BeachSq Programs 5000Z (White), Under6 Programs 70BF (Yellow)	Increases your Regular Chip capacity by 5MB. Only two can be acquired in the game, though the pink one also exists in the data.	N/A	Custom Poison
	Attack+1	Comes with NaviCust (Pink1), BeachSq Programs 3000Z (White), StationBoard PMD (Pink2), HospCode HospComp2 BMD (Yellow)	Increases your Buster attack power, allowing you to do more damage with uncharged shots. There are four in the game to bring your Attack level up from 1 to 5. You could trade for more, but the buster stats are designed to go no higher than 5, so installing more than four would have no effect.	N/A	Shot Bug
	Speed+1	Comes with NaviCust (White1), Yoka1 BMD(Yellow), Under4 BMD(White2), Under6 Programs 40BF (Pink)	Increases your Buster firing speed, allowing you to pelt enemies with uncharged shots more rapidly. As above, there are four in the game and that is all you need.	N/A	Shot Bug
	Charge+1	ZooComp2 BMD(Pink1), Beach1 BMD(Pink2), BeachSq Programs 2000Z (White), HospComp5 BMD(Yellow)	Increases your Buster charge rate, allowing you to produce charged attacks faster. As above, there are four in the game and that is all you need.	N/A	Shot Bug
	BugStopper	Bug Style Lv.2	Prevents all bugs caused by improper NaviCust setup.	N/A	N/A
	Humor	Ch.6 "Help with rehab" request.	Press L to talk to Megaman in the real world and his usual advice will be replaced by a random "joke". Equip this and talk to the navi in Yoka2 accessed via the Bath Lion Comp to give him joke ideas and be rewarded with a Team1 * chip.	N/A	Move Bug
	BlackMind	Chapter 7	Undernet residents will normally shun you for being a surface-dweller. With this equipped they will treat you as one of their own, dispensing helpful hints and allowing you to progress the plot in Chapter 7. You can also use this when talking to that actor in BeachSquare looking for bad guy inspiration to get the Team2 * chip in return.	N/A	Move Bug
	BusterMax	Undernet6 BugFrag-Program Trader 150BF	Sets the Buster's Attack, Charge, and Speed stats to the maximum of 5. Unfortunately there is an automatic bug that causes battlechips to be used as soon as the turn starts and prevents you from performing left+B commands like Shield and AntiDamage.	N/A	Autofire Chips & left+B Cmd Off
	GigaFolder1	Undernet7 PMD after beating BassGS	You can put one more GigaChip than you usually can in your folder. So two rather than one. There is an automatic bug that causes swamp panels to appear on every panel from which you move. Also the only purple block and since no style allows purple, this will always produce an error. The error depends on your type of style. Normal and Bug produce G2G. Custom, Team, and Ground produce G2C. Guts, Shield, and Shadow produce G2S.	G2G G2C G2S	Swamp Step
	HubBatch	Ch.9 Secret3 BMD	Equivalent of HubStyle in the previous game. You reap the benefits of SuperArmor, BreakBuster, BreakCharge, Custom1, MegaFolder1, Shield, FloatShoes, AirShoes, and UnderShirt, a truly formidable arsenal. The tradeoff is an automatic bug that reduces your max HP by half. Like GigaFolder1, there will always be one of three error codes depending on your style, and the same principle applies.	S2G S2C S2S	Half HP
	DarkLicense	Bug Style Lv.3	Allows you to use Dark Chips (Bass, Serenade, DarkAura) without needing a DarkHole open on the field. Automatic bug causes one less chip to be available in the Custom Window. This is the only grey block, and thus can be used without error with Bug Style. Otherwise, like GigaFolder1 and HubBatch, there will always be one of three error codes depending on your style, and the same principle applies.	D2G D2C D2S	Custom-1

The above listed locations are all the places you can normally get Programs in the game, but if you want more, you can use the Link Cable to network with other copies of the game and trade Programs. This is mainly useful for getting the Version-exclusive Style Programs (Ground Style and Shadow Style) to the other version, which can't normally acquire those Programs.

Many of the ModCodes can be found in the game as soon as you're at the point where you can buy the ModTools. The codes mainly use letters of the alphabet but also include three unique characters, , , and . You can easily recognize an Error or Extra ModCode by the presence of one of these characters in the 8 letter sequence.

ECd	ModCode	Program	Hint
A1	GYUOPZQ	SuperArmor
A2	GKQRSQ	BreakBuster
A3	LOZXME	BreakCharge	Cossack's messenger in TV lobby, N1, Ch4
B1	JHGIUTOP	SetGreen
B2	ALSKWR	SetIce	Chaud on SciLab board, Ch7
B3	YUOMNCB	SetLava	Haru the Hack on SciLab board, Ch5
B4	LSKUTOB	SetSand
B5	BMKWIRA	SetMetal	Nukky on ACDC Board for Poteno, Ch8
B6	UTIOMDH	SetHoly
C1	XCDKDA	Custom1
C2	UTIXMLA	Custom2	Boy that lost Camera in zoo, Ch5
E1	PIMSJL	MegaFolder1	Bozu on ACDC board, Ch8
E2	UTIRSO	MegaFolder2
F1	QSAOCL	Block
F2	NCFKSA	Shield
F3	ITACRWQ	Reflect	Nukky on ACDC Board for Poteno, Ch8
H1	ADJMNB	ShadowShoes
H2	UTIWSMF	FloatShoes	UnderBBS for creepy guy, Ch9
H3	SKLROT	AntiDamage	Hospital Magazine, Ch5
G2G	CVVDSWR	GigaFolder1 (Normal, Bug)	UnderBBS guy for Poteno's boyfriend, Ch8
G2C	TISLAEJ	GigaFolder1 (Custom, Team, Ground)	UnderBBS guy for Poteno's boyfriend, Ch8
G2S	TUIEOT	GigaFolder1 (Guts, Shield, Shadow)
S2G	AXRTDS	HubBatch (Normal, Bug)	"Giraffe" organization guy hiding in Zoo, N1, Ch4
S2C	TUAWLL	HubBatch (Custom, Team, Ground)
S2S	FAAFETG	HubBatch (Guts, Shield, Shadow)	Hidden Demon in Under5, Ch7
D2G	OIUWMAN	DarkLicense (Normal)	WWW Base pillar, Ch8
D2C	WSFSAQ	DarkLicense (Custom, Team, Ground)
D2S	PTOSIIS	DarkLicense (Guts, Shield, Shadow)

Good News: You only have to enter each of the above ModCodes once and it will be saved for the next time you receive that particular error.
Bad News: If you cause more than one of the above errors at a time, like by installing both a red and an orange block when your allowed style color is green, then the Error message you get upon hitting Run won't display an Error Code, just the word "Error", meaning you'll have no way of continuing without removing one of those blocks.

Being limited to just one incompatible program at a time is disappointing if you like to mix Style abilities, but fortunately some of the Style Program colors are shared between Styles making it a bit easier. Red is used by Guts and Shadow, green is used by Ground and Team, and blue is used by Custom and Shield. The sole grey block is used only by Bug Style, while the two orange and one purple are used by none, meaning they will always require a ModCode.

If you didn't cause any errors, then hit Select after the Run anyway and enter an Extra Code for even more abilities. Beware that many automatically come with bugs, and BugStopper will NOT prevent them! The Extra Codes are never hinted at in-game, but oddly enough they are in the GameCube game Megaman Network Transmission as well as in the second season of the EXE anime. Episode 45 and a couple episodes after that featured one Extra Code prominently, one that Mr.Famous supplies to Lan (and later Mr.Match) to give the navi a huge power boost, and up to 200,000 hit points. Viewers at home quick enough to write that code down might have tried it out on their EXE3 cart and found a slightly similar effect in the form of just 200 more hit points. Of course most gamers probably already got the entire selection of better EX Codes from walkthroughs like this so those hints probably weren't as important as they were supposed to be. Well, on that note, here's the Extra Codes.

ModCode	Effect	Bug	Hint
KTEIUED	SuperArmor	N/A	NT ExCodeHint2 - DenArea2
SIIEMGO	BreakBuster	Custom-2
SKDSHUEO	BreakCharge	Custom-1
JDKGJU	MegaFolder1	N/A
DIVNEIQ	MegaFolder2	Custom-1	EXE episode 51 - rotating around the NetAgents' "Deletron" hologram.
URYRRO	MegaFolder3	SwampStep
FFIMOWE	MegaFolder4	SwampStep
SKFBMUW	MegaFolder5	SwampStep
ZBKDUEW	Block	N/A
EIRBMI	Shield	N/A
SKEOM	Reflect	Custom-1
GKHUKHI	ShadowShoes	N/A
PEOTIRG	FloatShoes	N/A
LKJGUEO	AntiDamage	Custom-1
UIEUNGO	SneakRun	N/A
ZNUDOIQ	AirShoes	Custom-1	NT ExCodeHint3 - DenArea3
SKJGURN	Undershirt	N/A
XBCJFRI	FastGauge	Custom-2
JIEUAWT	HP+100	N/A
UIEOSKW	HP+150	N/A
ASKIETN	HP+200	N/A	The Extra Code used prominently in episodes 45, 50, and 51
SIETMSD	HP+250	N/A	EXE episode 46 - scrolling under Wily's video will.
SEIUTNG	HP+300	N/A
GJHURIE	HP+350	N/A
AWEETSW	HP+400	Custom-1
MZNBXH	HP+450	Custom-1	EXE episode 49 - scrolling across the map on the monitor while the gang is trying to track a missing Megaman.
YTIWOAM	HP+500	Custom-1
OIUTNWQ	HP+550	Custom-1
ZMJIGIE	HP+600	Custom-2
SRUEITA	HP+650	Custom-2
AKZUMW	HP+700	Custom-2
DMGEIOW	HP+800	SwampStep	NT ExCodeHint1 - DenArea1
SMUIROA	HP+900	SwampStep
CNJDUEM	HP+1000	SwampStep
SJHUEKA	Humor	N/A
KSIKEIG	GigaFolder1	SwampStep

Additional EX Code Notes:
-Doubling up on an ability with these like installing the SuperArmor part and entering the SuperArmor EX Code will have no added effect, unlike when installing two of the same part which causes a bug.
-You can use the MegaFolder codes along with the MegaFolder parts to get a much higher amount of MegaChips in your folder, but bear in mind that it caps out at 10 regardless, even though you could conceptually set it up for as high as 15.
-For codes that conflict with programs like if you installed Shield but input the EX Code for Reflect, then the EX Code overwrites the program.
-Most EXE3 pages with EX Code lists include a SlowGauge code 2BKD1UEW, but this did not work when I tested it. I'm guessing most people did not test this one because who the hell wants SlowGauge anyway?

Speaking of hints in the anime, there were also some compression codes to be found, but the way I included those codes in the first table didn't leave any room for the hints up there. There were only a couple anyway, so I'll just note them here. These hints weren't even very helpful since they didn't tell you where and how to use the code, so I guess you were still supposed to rely on guessing and process of elimination.

SneakRun's seen on a wall and on a gear within the walls of Yai's house, episode 52.
Collector's as an item on Yahoot's Curry menu, and later floating through the air accompanying his passionate Curry Noodles speech, episode 54.
Shield's scrolling across Lan's PET screen as Megaman explains the big cyber-tree, episode 56.
FastGauge's spinning around Aki-chan's hologram as she leads the navis to safety, also in episode 56.

Each of the nine colors has its own Spin Item to allow you to better position programs of that color. Here's how to acquire each of them:
SpinYellow - Ch.3 reward for "Help me with my son!" request.
SpinPink - Ch.6 Beach1 PMD behind HospCode Security Cube.
SpinWhite - Number Trader 77955025
SpinRed - Number Trader 72563938
SpinGreen - Number Trader 28274283
SpinBlue - Number Trader 11002540
SpinOrange - Ch.6 from girl hidden behind the wall by the shore under the hospital.
SpinPurple - Ch.7 from woman hidden behind pillar in front of store on Beach St.
SpinDark - Ch.8 from Prog hidden behind the base of the big pillar in Undernet4.

Finally, here's an outline of the various Bugs your programming can cause.

Breaking the first rule, "Program Parts must be placed on the Command Line" not only results in a bug, but also the program won't take effect. Notice how when hitting Run, the Command Line fills yellow from left to right, displaying the names of the program parts it passes over as it goes. This represents the system reading and running the programs, so if they're not on that line then they get ignored, except you'd still have to enter a ModCode when appliccable and you still get a bug. BugStopper will only help you with the actual bug, if you have it installed along with a Program Part that's off the line, then that Program is just taking up space. Your other sources of bugs will be from putting plus parts ON the Command Line or from putting blocks of the same color next to each other, but neither of these broken rules will cause additional problems.

Usually if a part is bugged, you'll still get the benefits of the part but maybe with decreased effectiveness (eg. both pink Atk+1 parts are touching so the buster will shoot a lot of blanks, but the good shots you do fire will still do 3 points of damage). However certain bugs will automatically negate the effects of the programs that spawned them (eg. If SetHoly is touching another green part, your normal terrain will only be set to cracked or swamp, no holy).

Bugs may have a cumulative effect when one program breaks the rules in more than one way (eg. white plus part is on the Command Line and touching another white part, or a yellow part is touching two other yellow parts) or when more than one program with the same bug type breaks the rules (eg. Speed+1 and Charge+1 both have the "Shot Bug" and both are placed on the Command Line, or both pink Attack+1s are placed adjacently so they bug each other).

In addition to the three stated rules, there are a couple unspoken rules that will also cause bugs when broken. They're probably not mentioned in-game because they're kind of intuitive:

• If more than one of the same program is installed and the effect is not cumulative, then the programs bug each other as if they were two programs of the same color touching. (eg. Two Undershirt parts installed, or two BreakCharge parts, even if one is the orange one and the other is red.) This does not apply to programs that do have cumulative effects like Plus Parts, Custom1, MegaFolder1, etc. For some reason Humor and BlackMind are also exceptions to this rule.
• If programs with conflicting effects are installed, then they bug each other (eg. both Shield and AntiDamage are installed. Both abilities use the same command so they cannot coexist). When the bugs do not negate the effects of the programs, then the rightmost part on the Command Line is the one that will be active (eg. If both Fish and OilBody are installed, and the Command Line reads OilBody after Fish, then OilBody overwrites Fish). Program types that conflict with themselves include the SetStages, left+B commands, ShadowShoes/FloatShoes, elemental enemy attractors, and the Support Units.
• Certain programs will automatically cause bugs even when following all the other rules. These bugs can be negated with BugStop same as other bugs.