HP Memory

Each HPMemory item you find will add 20 to your max HP. As usual, you start with 100 HP and can collect 45 of these items to get up to 1000 HP. Use NaviCust HP+ blocks and EX Codes to get even higher HP.

1-2. ACDC2 Shop - 1000, 3000 Z (ch1)
3-4. ACDC Square Shop - 2000, 5000 Z (ch1)
5-7. SciLab Square Shop - 2000, 4000, 8000 Z (ch2)
8-10. Yoka Square Shop - 4000, 8000, 12000 Z (ch3)
11-13. Beach Square Shop - 5000, 9000, 13000 Z (ch4)
14-16. UnderSquare Shop - 12000, 16000, 20000 Z (ch7)
17-19. Undernet4 Shop - 8000, 12000, 16000 Z (ch7)
20-22. Secret2 Shop - 20000, 30000, 40000 Z (ch9)
23. Reward for Request Board job 4: "Transmission Error" (ch3)
24. Reward for Request Board job 6: "I'm broke...!" (ch4)
25. Reward for Request Board job 11: "Stuntmen wanted!(Tora)" (ch5)
26. Reward for Request Board job 22: "Finding the blue Navi" (ch8)
27. Locked Mystery Data in Mayl's HP (ch1)
28. Mystery Data in School Server Comp (ch1)
29. Mystery Data in Principal's PC 2 (ch1)
30. Mystery Data in Numberman Sign Comp (ch3)
31. Mystery Data in ACDC Tank Comp (ch8)
32. Mystery Data in ZooComp1 (ch2)
33. Mystery Data in Yoka2 (ch3)
34. Mystery Data in Editing Room Comp (ch5)
35. Mystery Data in HospComp2 (ch5)
36. Mystery Data in HospComp5 (ch5)
37. Mystery Data in Undernet3 (ch5)
38. Mystery Data in Undernet5 (ch7)
39. Mystery Data in Undernet7 (ch9)
40. Mystery Data in Secret2 (ch9)
41. Mystery Data in WWWComp1 (ch8)
42. Mystery Data in WWWComp4 (ch8)
43. Hades Isle - inspect the crab on the side of the ramp leading onto the boat. (ch4)
44. Hospital 3rd Floor - inspect the tree trunk. (ch5)
45. Prize for beating the QuizMaster behind Ura Inn. (ch7)

RegUp

Each RegUp item you find will add the given amount of MB to your Regular Memory. The Regular Chip is assigned while folder building. Press Select when pointing to a chip in your folder that has MB capacity less than or equal to your Regular Memory and it will be highlighted red. Then each battle will start with that chip in the first slot on your Custom Screen. Your default Regular Memory is 4MB, and with these 10 RegUp1s, 12 RegUp2s, and 4 RegUp3s you can raise it up to 50MB. You can use the Reg+5 NaviCust blocks to raise this slightly.

3 - Reward for Request Board job 2: "My navi is sick" (ch2)
3 - Reward for Request Board job 10: "Look for friends(Tora)" (ch5)
1 - Mystery Data in 5A Blackboard Comp (ch1)
2 - Mystery Data in Yai's HP (ch1)
1 - Mystery Data in Principal'sPC1 (ch1)
2 - Mystery Data in ACDC Tank Comp (ch8)
2 - Mystery Data in SciLab Vending Machine Comp (ch2)
2 - Mystery Data in SciLab2 (ch2)
1 - Mystery Data in Zoo Ticket Machine Comp (ch2)
1 - Mystery Data in Zoo Alarm Comp (ch2)
2 - Mystery Data in ZooComp4 (ch2)
3 - Mystery Data in Beach1 (ch4)
1 - Mystery Data in TV Station Door Panel Comp (ch5)
2 - Mystery Data in Hospital Bed Comp (ch5)
1 - Mystery Data in HospComp1 (ch5)
2 - Mystery Data in Undernet2 (ch5)
2 - Mystery Data in WWWComp2 (ch8)
2 - Classroom 5B - inspect the bookshelf by the blackboard. (ch3)
1 - Ura Inn Room - inspect the jars. (ch3)
1 - TV Station 1F Hallway - inspect the props along the wall. (ch4)
2 - Outside Hospital - inspect the stone monument. (ch5)
1 - SciLab Metroline Station - inspect the trash can. (ch6)
1 - School Teachers' Lounge - inspect the first row of desks. (ch7)
2 - TV Station Editing Room - inspect the recording schedule. (ch7)
2 - WWW Base - inspect the graph monitor in the first room. (ch8)
3 - Prize for beating Mr.Quiz in the Ura Inn hallway. (ch4)

SubMemory

Each SubMem item you find will increase the number of each type of SubChip you can carry at a time. You can originally carry 4 of each SubChip. Collect all four of these items to carry up to 8 of each SubChip.

Mystery Data in Ura Inn Armor Comp (ch2)
Mystery Data in Undernet6 (ch5)
Mystery Data in HospComp3 (ch5)
Reward for Request Board job 15: "Looking for condor" (ch6)

Key Items

For locations of Programs, ExpMemory, Spin(Color), and other items related to the NaviCust, see the NaviCust page.

Shops

Most NetDealers give you chips and HPMemory for the Zenny you pick up everywhere in the game. Program Dealers (usually represented by an Official-type Navi) supply Programs for the NaviCust. There are a couple shops that take BugFrags as currency instead of Zenny. In any case the shop usually has between one and three of each item and can be sold out. White and Blue version shops have different chip inventories as well. SubChip Dealers (usually represented by a purple Normal Navi) are the only ones with an inexhaustible inventory. Higsby's Chip Order may be sold out of a chip if you already possess the allotted amount of that item, but the inventory will be replenished if you lose those chips through trades or chip traders.

SubChips

NetDealers

Differences are color-coded White Version and Blue Version.

NaviCust Program Shops

Higsby's

Higsby's regular stock (above) is like any NetDealer except four of the chips are available in both versions, and there are no HPMemories for sale. His Chip Order system, which becomes available in Chapter 5, works a little differently. Chip Order stock includes every chip in the Library but each chip only becomes available once it has been entered in your Library. Stock can run out if you already have enough of that particular chip, but if you lose them the stock will replenish. The pricing list is too large to post here, but I will integrate it into the Library section eventually.

Number Trader

Higsby's Number Trader gives out various items for certain codes. Buying chocolates in Yoka Station gives you a random number for the trader but there's no guarantee the number will give you anything. These are the numbers that will work:

Quiz

There are four real-world NPCs that will offer to give you a quiz when you talk to them. If you get a question wrong you may try again from the start of the quiz as many times as you want until you get them all correct and win the prize. Once all four questioners are conquered, the Door Of Knowledge in Secret1 will open allowing you to retrieve a StepCross R.

Mr.Quiz Inn Hall, Ch4 1."3" holes in park mtn 2."Met" on Virus Lab screen 3."9" kanji pages 4."380" for coffee at Beach 5."3" pandas in booth Prize = RegUp3
QuizMaster Inn Back, Ch7 1.5B won the "8th" Breeder Challenge 2."Lion" pours the water. 3."2" gas bottles next to stand. 4."Stuffed Animal" is not in Mayl's room. 5.Panda looks "backward". 6."3" people statues in zoo. 7."Teachers" have newest blackboard. 8."3" Gold shield displays in office. 9."300Z" for lotto ticket. 10."Clay Statue" in school. Prize = HPMemory
QuizQueen Beside OR,Ch8 1."Shadow" changes size throughout the day 2."Pi" is 3.1415 3.shoes + banana peel = "slippers" 4.Round on both ends and high in the middle, "Ohio" nyuk nyuk nyuk nyuk. 5."age" goes up, never comes down. 6.Mt.Fuji found in "Japan". 7.baby sheep is a "lamb" 8."Gretel" is Hansel's sister. 9."Jupiter" between Mars and Saturn. 10."Snake" lays eggs. Prize = Barrier200 E
QuizKing Hades Mtn,Ch9 1."it's free" for a kid on the Metroline. 2."160" is the atk of CannonBall. 3."5th" floor is Hikari's lab. 4."2" (legs) have you. 5."Heat" was Gutsman's endurance challenge. 6."4" girls in 5A. 7."silver gear" in Tamako's hair. 8."Robots" was Wily's field. 9."Battle Network" is the game's title. 10."Bubbly Dance" is Bubs' dance. 11.A "Beast" is Beastman. 12."Teacher" was Higsby's past occupation. 13."st.Beach" on sign at Beach station. 14."folding fans" Yai used to love. 15."Love & Loss" is DNN's TV series. Prize = Navi+40 *

Gambling

In certain Comps you may encounter a Normal Navi that will offer a gambling game in which you put down an amount of Zenny, pick one panel out of a set of 2-4, and if it was the correct panel then your Zenny is multiplied according to the odds and you have the option to try again to further multiply the amount, but if you pick the wrong panel at any time, you lose everything. If you get enough consecutive wins, the navi running the game will go out of business and give you a rare chip along with you winnings. In each set of panels there will be only one winning panel randomly determined. The simplest way to play this is to save before talking to the guy and just pick the panel MM starts out on every time. Eventually you will win big, but you may want to stop on the penultimate step to keep the guy in business and continue to win massive amounts of Zenny.

SciLab Vending Machine, Ch2
- min 100Z bet on 2 panels - 200, 400, 800, 1600, 3200, 6400 & Prism H - 1/64 odds
Station Board, Ch5
- min 500Z bet on 3 panels - 1500, 4500, 13500, 40500 & StepSwrd L - 1/81 odds
Hospital Vending Machine, Ch5
- min 1000Z bet on 4 panels - 4000, 16000, 64000, 256000 & GutStrgt O - 1/256 odds

BugFrags

In MMBN2, BugFrags were introduced as a finite commodity, mostly found in hidden mystery data. In this game there is an unlimited amount of BugFrags but they are still rare and not too easy to come by. BugFrags may be exchanged for chips or Programs at certain shops (see shop list), they may be fed into the BugFrag Trader in Secret3 for a random rare chip, or they may be fed to viruses either through the Virus Breeder system or in particular events.

The primary means of BugFrag collecting is by counter-deleting enemies. Deliver the killing blow just as the enemy attacks to earn a star next to your Busting Level at the results screen. You get a star for each enemy in the battle deleted this way. Then after the usual chip/zenny reward you'll get BugFrags according to the number of stars/counter-deletions.
* = 1BF
** = 3BF
*** = 8BF
Navi = 10BF

Countering is easier for some enemies than others. Some viruses like WindBox don't have a point in their animation cycle that allows them to be countered. Mets are easy as they can be countered just before their pickaxes hit the ground to attack. Many other enemies like Canodumb must be hit during or just after they attack. In any case, countering requires careful timing and since simultaneous counters are rare (unless enemies onscreen have synchronized attacks, like Totems) going for multiple counters is highly likely to hurt your Busting Level.

You can train yourself to try for counters in every battle, but at some point you may want to concentrate on an S Busting Level instead. To quickly build BugFrags, try repeated battles with just Mets and Canodumbs in the earliest areas of the game, or possibly friendly navi battles like Metalman or Gutsman.

Another possible source of BugFrags is...

Simon Says

Hanging out in CyberSquares are Normal Navis that may ask you to play a little game. No charge. With a time limit of 60 seconds, you simply have to press the indicated button on the control pad enough times to win a prize of BugFrags. You can do this as many times you desire. If you press the wrong button, the display waits a second before showing the next one and that second can cost you dearly for the higher difficulties. Some may contend this is easier than battling for BugFrags, but the quick reflexes and hand-eye-coordination required for the higher-level versions of the minigame may make the process of BF collecting take even longer.

Yoka Square, Ch3 - 60 times/min for 1BF
BeachSquare, Ch4 - 90 times/min for 5BF
UnderSquare, Ch7 - 99 times/min for 30BF

Defense Types

Both MM and your enemies and even objects used by both may use certain forms of defense to avoid damage, but every defense has its weak point.

Normal - will flinch from certain attacks and does not regularly use techniques to avoid damage besides dodging. This applies to Megaman and many other navis by default.
Armor - SuperArmor effect. Does not flinch and thus his moves cannot be interrupted normally. You may still be able to interrupt moves with paralyzing attacks or attacks that push the navi back like AirShot or GutsPunch. All viruses basically have Armor in that they don't have "getting hurt" animations. Megaman can have this with the SuperArmor NaviCust program and certain other navis like Metalman and Darkman have this in effect as well.
Cover - Regularly makes use of objects between self and opponent to block direct attacks. You may be able to clear away objects with certain attacks (may need breaking attacks). Use indirect attacks to get around obstructions. Use object chips to form your own cover, though the objects you create with chips tend to be more fragile or less reliable than the kinds your enemies use.
Barrier - Regularly intercepts damage with some kind of barrier that offers complete coverage. Barriers usually have a key to dispelling or surpassing them, or may be periodic and thus require you to attack with correct timing while the barrier is dropped. For Megaman, there are Barrier and Aura type chips and Shield Style that can offer you some of the most reliable defense the game has to offer, but only if you stack enough of them to have them when you need them, which naturally cuts into offensive capabilities.
Shield - When most attacks do nothing but create a metallic clink, the target may be shielded, and thus only "breaking" attacks can damage them. Breaking attacks include a lot of heavy or metallic implements, like BreakHammer or CannonBall. You can perform your own Shielding with MetGuards, CurseShields, or Chess Pieces. The Shield and Reflect NaviCust programs let you use this type of defense as much as you want. Just be aware that a lot of enemies have breaking attacks. Beware that any physical contact between Megaman and an enemy counts as breaking damage to Megaman, while the enemy receives no damage. Just like any Megaman game in that regard.
Invis - An invisible enemy cannot be seen by the player, and most attacks will pass right through them even if you don't need to know where they are to hit them. Light-based attacks like KillerSensor or Flashman's flash are the only way to strike an invisible opponent and cancel the invisibility status (such attacks also happen to count as breaking, which is why they have the reputation as "super-piercing" for their ability to go through Shield AND Invis). The Rush NaviCust program can also reveal Invis opponents during a Link Battle. Invisibility is rare among enemies, only Elebee and Dominerd viruses utilize it. Megaman can use it with the easily-acquired Invis chip, and with Shadow Style in the Blue Version. Invisibility is one of the more reliable forms of defense, but it's good to be aware of its weak points.
Shadow - A rare defense with a somewhat obscure weak point. A Shadowed combatant appears as a dark silhouette and most attacks pass through as with Invis. Only sword-type attacks can penetrate and cancel Shadow status. For enemies, this is only used by the DarkShadow virus family, who are protected by it constantly, making battles with these viruses impossible without the right chips on hand. Megaman can use temporary Shadow defense with the Shadow chip.
Mole - Another rare condition. Mole defense puts the user underground where most attacks directed at him will pass safely over his head. Mole's weakness is ground-breaking attacks like CannonBall or Magnum, lava panels, or other attacks that penetrate the ground like GreenRope or MetaGel. Mole has another weakness in that the user has to briefly surface and be vulnerable while attacking. The Momogra virus family and Megaman with the Mole chip are the only ones that will use this.
Trap - Only Megaman can set Traps by using certain chips. The presence of the trap is indicated to both players as a string of question marks in the corner of the screen. There are four things in this game that may trigger the trap, but the opponent has no way of knowing which until they stumble into it. Requires some careful planning on the user's part to predict the enemy's movements, as the conditions can be very particular, but if the trap is sprung, the effects are deadly to the opponent.
Holy - Half-Damage. Stand on holy panels or use the Block NaviCust program. It's not great coverage, but can slow the enemy down and be harder to defeat entirely. If you're up against holy panels, pack your own stage-altering chips to get rid of them.
Invincible - Just can't be harmed. Combatant usually glows green while this is in effect. It's only ever temporary though. The easiest way for either Megaman or the enemy to achieve this is by the periodic playing of the Fanfare chip / Trumpy virus. One of the BugStyle bugs puts Megaman in this status for ten seconds at the start of battle sometimes.
Flying - Only enemies can completely benefit from this type of evasion. It involves the combatant's body being a few feet above the ground or off the battlefield where no attacks can reach. Thankfully, enemies that can do this are stupid enough to come back down to where you can shoot them from time to time. The closest Megaman can come to this is the AntiDamage technique which has him throw shurikens from up high as a counterattack, but that counts more as a Trap than anything. For a poor-man's flight evasion, equip AirShoes and stand on a hole panel, and at least ground-based attacks can't reach you.

Trades

Some real-world NPCs may ask to trade chips throughout the game. These trades may be very useful for completing your library. Chips gained in one trade may be traded again for something slightly better in a trading chain.

Extra Folders

Extra Folders are chip folders you cannot edit, and after acquiring your first one at the same time as your NaviCust, one will always occupy the last slot of the 2-3 folders in your possession. Gaining a new Extra Folder overwrites your previous one. Extra Folders are assigned as challenges at certain points in the game and may be fun to play around with otherwise, but they are rarely as good as anything you could build on your own. Extra Folders will never have more than the default allotment of Mega/Giga Chips so if you ever make a Style Change or NaviCust edit that makes your currently-equipped Folder break the capacity rules, your Extra Folder will be automatically equipped until the other is fixed to conform to the new restrictions.

Color codes: Fire, Aqua, Elec, Wood, Breaking, Push/Pull, Steal, Defense, Recov, Enhancement, Terrain, Object.

Request Board

The Request Board located in the SciLab lobby contains little sidequests you can tackle throughout the game. Read the details of each job listed before confirming if you want to take it on. Once you've accepted a job, you cannot accept any other jobs until the current one is complete. Completed jobs will be indicated with an OK mark. Completing a job always nets you a reward from the client that made the request. Once all jobs are complete, the Door of Trust will open in Secret2, allowing you to pick up HP+500.

Battles in missions often differ between versions. Differences are color-coded White Version and Blue Version.

Miscellaneous Oddities

The Mystery of Flameman's Tome:
Near the end of Chapter 6, after beating Flameman for the first time and then losing to Bass, try jacking back in immediately and going to the spot where Bass deleted Flameman for a somewhat spooky encounter.

He stops appearing here after you rescue Dr.Hikari from SciLab, the natural first course of action Lan is expected to take. ("We have to go see if dad is safe!...riiight after browsing the net for a while.")

If you're wondering why he has the dialogue of another NPC, it's a common deal for character sprites that are on the map but normally can't be interacted with by pressing A. Approaching Flameman as part of the storyline triggers a cutscene before you can touch him, but because the game forgets to remove him right away, you can reach him and talk to him without the cutscene interfering, resulting in this interesting exchange. You can even get the Tome from him if you happen to have a Magnum1 A, which you probably won't since those don't normally become available until the final stages. If you start the Legendary Tomes mission two chapters later and find the actual NPC to whom this dialogue belongs, he'll act like you've already talked to him. The game keeps track of the dialogue itself, not which character supplies it.

Bonus Cheatery:
By using a walk-through-walls cheat, you can have exchanges like this with lots of other NPCs that are normally out of reach. Here's an amusing sample.

Want to play around with the no-walls code? Try this. There are a whole bunch of other EXE3 codes in Sprites.INCs archives, so go there for others, but the only other "no walls" code I could find I had to complete myself.

Walk Through Walls: 32009E03 0001

Naturally, there are infinite other cheating uses for a code such as this. It's practically all you need.

Drillman's Double-Take(off):
Here's some randomness for ya. Use Plantman right at the start of Drillman's battle, followed by a RockArm.

For some reason, due to the combination of the quake and being tangled in the vines, he shoots into the air twice. No practical application of this bug, it just looks funny.

YamatoSword:

Not sure if this is obvious or not, but apparently spears count as swords in this game, so Yamtoman's attacks can pierce shadow defense. Other attack attributes tend to be more obvious but I may list more odd ones if they come up.

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