History YMMV / MegaManBattleNetwork3WhiteAndBlue

* DifficultySpike: The Undernet rankings in the penultimate chapter represents a massive jump in difficulty, where the enemies on the first half befits the brutal reputation the Undernet gets. The preliminaries pits you up against multiple [=HeelNavis=] with Omega-tier viruses when many third tier viruses wouldn't even appear until the postgame, and one of the early ranking fights features ''[=BeastMan=] V3'' when the mandatory boss rematches in the final chapter only upgrade to the second version. Pass all that however. and the difficulty smooths out to manageable levels.

** Pretty much any time you need a specific chip to proceed. Thankfully this only happens a few times, but when it does your progress will grind to a halt while you try to find the chip you need. At one point in the game, you have to find an "Iceball M" chip. How do you find one? [[GuideDangIt Look it up.]] Only one enemy drops the chip, they're a rare encounter in a single-screen area you've no other reason to revisit, and you need to have the Fish program installed in the Navi Customizer to make them appear.

* UnderusedGameMechanic: The WWW Navi Security Cubes located all over the Undernet that locks rewards behind them, which can only be unlocked when their respective Beta/V3 random encounters were defeated. This feature was never used again in the subsequent games.

** "Legendary Tomes" feels like a rather straightforward fetch quest, but in addition to the client's given reward, the quest gives a few vague hints on how to decipher the tomes you've been collecting to obtain the treasure (which is a ''ridiculous'' amount of money). Which is fine and all, but the results from deciphering the tomes ''[[LostInTranslation were not translated at all]]'', turning finding said treasure into a bit of a GuideDangIt for those wanting to get the most out of it. If you turn in the quest without looking for the treasure, it's [[PermanentlyMissableContent lost]].

* GameplayDerailment: The combination of the 11th Chip glitch and [=FolderBack=] makes multiplayer an exercise in frustration without house rules (or ''Legacy Collection's'' removal of the former), as there's little to prevent players from repeatedly abusing [=FolderBack=].

* UnderusedGameMechanic: The WWW Navi Security Cubes located around the Undernet that locks rewards behind them, which can only be unlocked when their respective Beta/V3 random encounters were defeated. This feature was never used again in the subsequent games.

** The Time Trials, which become available after beating several {{Superboss}}es and are needed to 100% the game. You have to beat the v2 version of every boss within a certain time limit, but you're restricted to an Extra Folder, a weak uncustomizable folder that you can get off certain [=NPCs=] in the game. Many of them are clunky and not as fluid as you'd expect of an endgame folder, making getting those times a daunting task bordering on LuckBasedMission.

* ToughActToFollow: ''Mega Man Battle Network 3'' received critical acclaim and is often considered the best in the series. Spinoffs such as ''Battle Chip Challenge'' and ''Network Transmission'' get hit by this to an extent, but ''Mega Man Battle Network 4'' gets it the worst due to it not only being considered an inferior game to ''3'', but its status as a main game earns it even more flak.

** The Bodyguard Program Advance bombards the enemy area with 18 Shurikens, dealing 100 damage for each. The only bosses in the game with more than 1800 HP are [=JapanMan=], Serenade, Bass GS, Alpha (the FinalBoss), and the BonusBoss SP Navis. Everything else will be shredded.

* MagnificentBastard: [[LargeHam Noboru Sunayama]] is the showy and bombastic host of the [[TournamentArc N1 Grand Prix]], and secretly an operative of the WWW who aims to prove the power of the organization by defeating [[TheAce Chaud and ProtoMan]]. Entering the N1 himself with the help of a disguise and a robotic drone, Sunayama makes a point to wow the audience the entire way, including seeming deathtraps on a survival segment of the N1 show that are actually perfectly safe, and even restraining his own [=NetNavi's=] murderous impulses to avoid making the match with Chaud too anticlimactic. After dramatically revealing his identity, he takes Chaud's father hostage and [[SadisticChoice attempts to ransom him for ProtoMan]]. A consummate showman who [[GracefulLoser takes his defeat with dignity]], Sunayama is one of Wily's most charismatic underlings.

* AlternateCharacterInterpretation: Where Anetta's WellIntentionedExtremist eco-enthusiasm ends and where Wily's (and [=PlantMan's=]) brainwashing begins is...unclear. Also, is [=PlantMan=] loyal first to Anetta or to Wily? While the third game makes it obvious he serves as Wily's voice in her ear, in ''Battle Chip Challenge'' he remains with her after Anetta has abandoned the WWW and has nothing to say about Wily.

* EvenBetterSequel: The second game was already considered an improvement over the first, and the third surpasses it in writing and gameplay, having a well-told story and smoothing out bumps in the mechanics without introducing new ones. This is why ''3'' is often regarded as possibly one of the best entries in the series, if not the best. Fittingly, it is also one of the few ''Mega Man'' games to exceed one million copies sold.[[note]]''Battle Network 3'' does not appear on Capcom's official million-seller list, likely because the original and ''Black'' were not simultaneous releases in Japan and were thus counted separately, but was [[https://www.capcom.co.jp/ir/english/news/pdf/e040921a.pdf confirmed]] to be a million-seller in the PR for the ''[[Anime/MegaManNTWarrior Rockman.EXE]]'' movie.[[/note]]

** [=FlashMan=]'s light bulb attack. It doesn't damage [=MegaMan=], but it does paralyze him and bypass invisibility. Since it counts as [=MegaMan=] getting hit, it will prevent you from getting an S-Rank. It's blocked by Barriers and Auras, but it's not a defense people many will think about.
** [=GutsMan=] Beta may not have a lot of HP, but if you let him get to low health without finishing him off, he'll unleash his own Program Advance, Z-Punch. It turns him invincible for several seconds and he'll fling rocket punches nonstop (without triggering MercyInvincibility, so it can stunlock you if you're unlucky) until it expires, and lasts long enough that you might as well say goodbye to your S-Rank.

** [=GutsMan=] Beta may not have a lot of HP, but if you let him get to low health without finishing him off, he'll unleash his own Program Advance, Z-Straight. It turns him invincible for several seconds and he'll fling rocket punches nonstop until it expires, and lasts long enough that you might as well say goodbye to your S-Rank.

* ThatOneAttack: [=FlashMan=]'s light bulb attack. It doesn't damage [=MegaMan=], but it does paralyze him and bypass invisibility. Since it counts as [=MegaMan=] getting hit, it will prevent you from getting an S-Rank.

** The Time Trials, which become available after beating several {{Bonus Boss}}es and are needed to 100% the game. You have to beat the v2 version of every boss within a certain time limit, but you're restricted to an Extra Folder, a weak uncustomizable folder that you can get off certain [=NPCs=] in the game. Many of them are clunky and not as fluid as you'd expect of an endgame folder, making getting those times a daunting task bordering on LuckBasedMission.

* AmericansHateTingle: [=BubbleMan=].exe is much less popular in the West than in Japan, as his UglyCute design and VerbalTic only really appeal to Japan's tastes. To most Westerners, he's a GoddamnedBoss whose dungeon relies on obnoxious {{Padding}}, {{Fetch Quest}}s, and the introduction of the [[ScrappyMechanic Press program]].

** The Japanese version allows the Program Advances Big Heart, Prix Power, and Bodyguard to be recycled with [=NaviRecycle=]. Bodyguard in particularly doesn't even involve a Navi in this game; the fact that it works is a holdover from ''Battle Network 2'', where [=ShadowMan=] appears before the shuriken start flying.