Butter Nezumi

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Butter Nezumi Mugshot
Butter Nezumi Mugshot
Butter Nezumi
Artwork by Neo
In-Game Information
HP: 26 (max health 28)
Weapon: Butter Barrier
Weakness(es): Wheel Cutter
Affiliations: Dr. Gyoniku
Type: Shield
Occupation: Cow
Location(s): Tier 9 (MaGMML2)
Misc. Information
Script: バターネズミ
Romaji: Batānezumi
Designer(s): hsp
Programmer(s): SnoruntPyro
Gender: Male?
Series Information
MaGMML Game Appearances: MaGMML2 (Boss, NPC)
MaGMML: Episode Zero (cameo)
Other Appearances: Nezumiman
MaGMML2 ButterNezumi.png

Butter Nezumi is a boss from the pseudo-Mega Man game Nezumiman. One of Dr. Gyoniku's henchmen, he is a mouse with cow-like features, such as spot patterns and a cow's tail as opposed to a mouse's. He has special powers over milk, being able to spray it from a giant bottle or use it to create a shield of butter called the Butter Barrier.

Butter Nezumi appears in Make a Good Mega Man Level 2, serving as a tier boss. Like most tier bosses, his attack pattern is drastically updated from his source game, becoming a much more complex boss.

Game Appearances[edit]


Butter Nezumi is one of the eight boss Nezumis. To reach him, Nezumi Man must traverse a farm filled with dangerous livestock, from pitchfork-bearing cows, to chickens rolling on logs, to sheep armed with explosives. During his boss fight, Butter Nezumi jumps into a bottle of milk to create his Butter Barrier, which he uses as both a defensive shield and as an offensive attack, alongside basic projectiles after throwing the Butter Barrier. His weakness is the Pashiri Gun, Usagi's Special Weapon, and his Butter Barrier is the weakness of Ice Nezumi.

Make a Good Mega Man Level 2[edit]

Butter Nezumi appears as the boss of Tier 9, the Festival Grounds. He attacks Mega Man hoping to avenge Milk, whom Butter Nezumi viewed as a child figure. While Mega Man points out the Milk fought in Tier 1 was merely a simulation, Butter Nezumi still insists on fighting.

The arena's layout is about a screen and a half, featuring two milk bottles on opposite sides that Butter Nezumi jumps into. His pattern consists of him swapping around the "flavour" of the milk with bombs and getting different elemental shields as a result. He always cycles through a constant pattern - a regular Butter Barrier, a Nitro Butter Barrier, a Fire Butter Barrier, an Ice Butter Barrier, and a Shock Butter Barrier, before the pattern loops. He also can throw bouncing cheese projectiles that, if they land in the milk, will be submerged and later explode into a semi-X pattern of projectiles. He regains a small amount of health over time while he's inside the milk between phases, but he is still vulnerable in spite of being invisible. His hitbox is directly above the bottle's neck.

The ways he "throws" the shield depend on the "flavor" of the current barrier. The normal Butter Barrier will be thrown downwards and explode into four butter projectiles that slide across the ground. The Nitro Butter Barrier will let Butter Nezumi rev around the arena at extreme speeds and explodes after hitting a wall twice. The Fire Butter Barrier will lob fire projectiles at Mega Man before exploding into semi-homing giant fireballs. The Ice Butter Barrier will gradually spread outwards before crumbling. The Shock Butter Barrier will constantly send sparks out that increase the hit range of the shield, and Butter Nezumi will try to jump at Mega Man to take advantage of this.

Butter Nezumi is weak to the Wheel Cutter, which pierces through his shield and is a floor tracking weapon just like his original weakness, the Pashiri Gun. After his defeat, Butter Nezumi appears as an NPC in Chateau Chevaleresque.

Pre-Battle Dialogue[edit]

(Milk fizzles from one of the containers)

Mega Man: What the heck...?

(The containment explodes, revealing Butter Nezumi)

Mega Man: Excuse me?

Butter Nezumi: Ah, Mega Man! I've been expecting you.

Butter Nezumi: I apologize for the delay - I had to churn a bit as some training.

Mega Man: I have seen some extremely weird stuff in this festival, but... this?

Butter Nezumi: You act like you're surprised.

Butter Nezumi: You see, I have an apprentice named Milk. They were like a son to me...

Butter Nezumi: Then I had heard that a replica of them had been sent to this festival celebrating you as a 'boss'.

Butter Nezumi: I was deeply offended. I HAD to set right to this injustice

Mega Man: Wait, why would you get offended over that? It was just a hologram...

Butter Nezumi: It was a SYMBOLIC death. You have no respect for a comrade...

Butter Nezumi: I cannot forgive you! We MUST duel!

Make a Good Mega Man Level: Episode Zero[edit]

In the end credits montage of MaGMML: Episode Zero, Butter Nezumi makes a brief cameo appearance. He appears out of a Wargate that had opened up in Dr. Cossack's Lab, chasing after Milk (who had also come out of the Wargate and itself was chasing after Toad Man).

Damage Table[edit]

M.Buster H.ChaserH.Pumpkin J.SatelliteB.Barrier G.BusterN.BombL.Rocket T.BladeT.Cluster F.StopperC.Distorter S.ClawF.Beam W.CutterH.Trapper SakugarneM.Blast W.AdaptorC.Claw S.Arrow
1/1/2 1 2 1 1 N 1 4 2 1 2
Other Notes


  • Butter Nezumi is the only tier boss in any MaGMML game to start his boss fight with less HP than his maximum. This is a reference to his source game, where health bars max out at 26 units.
  • Butter Nezumi is one of only two tier bosses to have a room with a size larger than 256x224, the other being Jet Man.
  • If Butter Nezumi is encountered before Milk, his opening dialogue will still involve Butter Nezumi trying to avenge Milk, but Mega Man will be very confused.

Make a Good Mega Man Level 2 - Tier 9
Entry Stages
Misty LakeDonut Observation CenterRad GravitySector Upsilon 6Truffle ManMount SabreGuts Man's AsteroidSheriff Man
List of Bosses
CirnoDonut XGroovity ManGravity ManMecha DragonCaptain ViridianTruffle ManKelbesqueGuts Man DuoSheriff Man
Tier Boss
Butter Nezumi
Make a Good Mega Man Level 2
Mega Man (Costumes) • Dr. LightDr. WilyZeroRollEddieKnight ManGalaxy Man
Special Weapons
Hornet ChaserJewel SatelliteGrab BusterTriple BladeFlash StopperSlash ClawWheel CutterSakugarneRush CoilRush JetWire AdaptorSuper ArrowHaunt PumpkinBadge BarrierNeapolitan BombTruffle ClusterCyber DistorterForce BeamHazard TrapperMatch BlastLaunch RocketShuttle JetChomp ClawCarry
A Mega Man for All SeasonsAD 2101Airflow HubbleAlien TempleAncient TombAurora ManBeneath Sand and RockBiplane BayBlaze ManBoil ManBond ManBouncy CastleBut it Lacked the Depth to Convince Me That This Was Really HellCandy PanicCardinal ManChangeable CavernsChomp ManCity Under SiegeColorful HallCombust ManConveyor MayhemCossack's Other CitadelCrystal LabCursor CurseCyber ManDonut Observation CenterDragon Lab LairDuwangElec DamEnhanced MobilityEscape SequenceForce ManForgotten FortressFortified LabGigavolt ManGunpowder CellarGuts Man's AsteroidHaunt ManHoly Crap, Mega Man Can Airslide?Identity CrisisJoe Destruction Co.Joe ManJungle BaseJust an Ice LevelKomuso TempleLaunch Man & Shuttle ManLava FactoryMaze of Significantly Less DeathMegaLondoMisty LakeMix & MatchMount SabreNeopolitan ManNeon ManNitrogen ManOrbital StationPoorly Named LevelQuarantine WomanQuint StageQuirky Unconsistent Incomprehensible Nonsensical TrackRad GravityRuined LabRush CitySector Upsilon 6Sheriff ManShovel KnightSMB3Smed's Big Annoying Mess of a LevelSnow ManSomething OriginalSpiky SituationStarman RecreationTaco ManThe DampeningThe FallThe Stage Nobody Asked ForTruffle ManVolcanic FurnaceWily CoasterWily TowerYggdrasil
Wily Star II
Outer SpaceWater DuctsClassic CastleLever Oriental EnchantedInner SanctumUnobtainium MineReality Core
Tier X
Goblins n' GhastsNightwalk CastleMetallic OceanWily Fortress VRSo GoodMario LandCoyote ManHardcore ParkourDeep ThoughtsThe Quickening 2Swiss HotelStar RoadNull and Void
Secret Levels
City WarTwilight Lodge
Tier 1 - Ruined SimulationTier 2 - SewersTier 3 - ForestTier 4 - Train StationTier 5 - ArcadeTier 6 - Battle NetworkTier 7 - McWily'sTier 8 - Grand TowerTier 9 - Festival GroundsTier 10 - Rainbow RoadTier XWily Star IIDr. Light's LabEddie's ShopCostume ShopDojoChallenge TentChateau ChevaleresqueThe Pit of Pits
Tier Bosses
MilkOmbuds ManDoor ManThe Scorching DuoLord ElewoofroCheat ManGhost of Christmas FutureJet ManButter Nezumi
Robot Masters
Alter ManBoil ManBond ManChomp ManColor ManCombust ManCyber ManForce ManHaunt ManJoe ManLaunch Man & Shuttle ManMatch ManNeapolitan ManNeon ManQuarantine WomanSheriff ManSpiked-Wall ManTaco ManTruffle Man
Other Entry Bosses
Air DevilBig Fire TellyDisco BallGiant MetallGreen Hot DogHall MasterKomuso Man?MixerlydiaMush KingJoe MobRed Hot DogSuper CannopellerTurbo RoostWarp Anomaly8 Centipeder TowerBoss WhopperBoundin' Crash ManBowserCaptain ViridianCATSCirnoCratorCreamCrusher JoeCursorDoc RobotDonut XGuts Man DuoFinal ToadGroovity ManKelbesqueKichonaNapalm ManPharaoh Man's RevengeAlienThe KidRomhack Top ManAir CapsuleAvoidance CherryDennisGangly Crash ManJoe Man R
Fortress Guardians
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Devkit Bosses
Cut ManGuts ManMetal ManCrash ManTop ManGemini ManPharaoh ManToad ManGravity ManPlant ManCentaur ManSplash WomanChill ManVolt ManKomuso ManMecha DragonQuint
Tier X Bosses
SkullderSkullder's RevengeExcalibur ManAir ManUnbeatable Air ManHolo WilyRonrezToad Man's RevengeCoyote ManGigabgyoVolt Man MK2Twin CannonsFire ManCopy HologramDie SignLiterally Just a BeeStone Butterfly
Secret Bosses
Quick ManGammaVolt Man the AssimilatorWishing StarThe MoonBirdoGlass Man
Super Bosses
Absolute ZEROKnight ManGalaxy Man