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Background

Big Core MK II is a major upgrade from the original Big Core. He's much larger, has red streaks instead of yellow, can open up to reveal two cores, can shoot many more lasers, and a new attack pattern. He has been featured in several games as well, one of the most obscure is Ganbare Goemon on the NES as a mini-boss. The SNES version of Gradius III calls him Ice Ice. In Gradius Gaiden, he is in the second stage as one of the boss debris. He was not featured in the NES version of Gradius II.

Attack Patterns

If you're away from him, he will fire Big Core's signature four laser spread. However, if you're in front of him, he will open up and fire his whole laser array at you. When you destroy one core, the other side it's on will stop functioning, meaning only half of his lasers will work and you can stay in that area. This is good and makes the rest of the fight much easier.

In Gradius V, he can tilt to face you and shoot and also occasionally tries to ram you. In addition, he will sometimes go berserk, spinning rapidly and firing his lasers randomly.

Gallery

Appearences

Gradius II
Ships Vic Viper
Stages (Arcade) Artificial SunAlienCrystalVolcanoRevenge of MoaiHigh Speed ZoneBoss RushGofer Ship Interior
Port-Exclusive Stages Volcano - Crystal (NES) • Enemy Base (NES) • Gofer's Lair (NES) • Temple (PC-E)
Bosses PhoenixBig EyeGiga (NES) • Crystal CoreDeath MK IIJumping MoaiBig MoaiDesert Core (PC Engine) • Big Core MK IIZub RushBig CoreTetranGawIntruderZelos Force (NES) • Covered CoreDemosCrabGofer
Gradius III
Ships Vic Viper
Stages DesertBubble ZoneVolcanic PlanetHigh Speed DimensionMoai ZoneCell PlanetProminence PlanetPlant PlanetCrystal ZoneBoss RushMechanical Base
SNES Exclusive Stages High Speed ZoneFortressCell
Bosses GoliathBubble EyeGodreiBig Core MK IIIDogasVaifTwin Vaif (SNES) • GregolWyvernVulture DragonChoking WeedLizard CoreBeacon (SNES) • TetranCovered CoreBig Core MK IICrystal CoreDeath MK IIDellinger CoreDisruptShadow GearShadow Gear MK II (SNES) • Big CoreBrain GolemBacterion
Gradius V
Ships Vic Viper T-301
Stages Planet Gradius Satellite OrbitPlanet Gradius City Sky APlanet Gradius Urban Underground HierarchyBacterian Cell CenterAsteroid Front BaseBacterian Multiplication PlantBacterian Fortification CenterPlanet Gradius City Sky B
Bosses Big Core Rev. 1.2Venom (Lower) • Death MK IIITetranBig Core MK IIBig Core MK IVGround SpiderHuge HeartBlaster Cannon CoreRolling CoreCircle CoreBig Core MK IIICovered Core MK IIBeaconKeeper's CoreElephant GearVenom (Upper)
Solar Assault
Ships Vic ViperLord BritishAlpinia
Stages (Arcade) The River StyxFierce BlazeCurseAbyssal ForestSpeed DemonSolar Assault
Bosses Big Core MK IIntruderTutankhamonDinosaurBig Core MK IICrab
Otomedius
Main Characters Aoba AnoaErul TronEmon-5MadokaDiol TweeTita NiumEsmeraldaPoini CoonArnvalStrarfGesshi HanafuumaKokoro Belmont
Supporting Characters OperettaPrincess IreneKonami LadyEmon-8Pastel
Antagonists ElizaTiti XIVYoshikoGofer SistersMeta LiumNeko SenchoT.B. RikaRyukotsukiShiori FujisakiRuby and CobaltDark Force
Otomedius / Gorgeous stages San Salvador IslandTokyoCanadian RockiesEaster IslandAlexandriaAntarcticaValhalla
Otomedius X: Excellent! stages The Big WaveMidnight TetranSpelunker of HellThe Ancient BacterianThe Return of Cosmic WarDark Force's Ambition Part 1Dark Force's Ambition Part 2Dark Force's Ambition Part 3Skills to the TestMessage from Emon-5The Reunion
Otomedius / Gorgeous bosses Eliza's Pet SealEyegolBig Core DX-01Scrab CoreCrystal Core D-X02Big CoreAbaddon WarshipMayhem WarshipTetranViva CoreManbowBig Core MK IIRolling CoreCovered Core MK IIDeathZelos Force FortuneOdin Core
Otomedius X: Excellent! bosses Mirrored CoreTri-Pod CoreSerpent-CoreBig Core DXOld Big CoreHeaven's GatePerla MeraldaNeo Big CoreMisfit WarshipDellinger CoreMetal SlaveGunner WallBlack ViperDeath BringerScramble ShipBisumaru ExcellentWinBee
Core Warships
Big Cores Big Core MK IBig Core Rev. 1.2Big Core MK IIBig Core MK II KaiBig Core MK IIIBig Core MK IV
Big Core variants BeaconBlaster Cannon CoreBubble CoreCircle CoreCoreshipCrater CoreCrystal CoreDellinger CoreDesert CoreHeaven's GateJuggler CoreLaser CoreLizard CoreNeo Big CorePerla MeraldaRexion CoreRolling CoreShining CoreSuper Big CoreTerra CoreVanishing CoreViva CoreGenocide CoreOdin Core
Core-style bosses Abaddon WarshipBubble EyeCovered CoreCovered Core MK IIDead EndKrakenMayhem WarshipMetal SlaveMisfit WarshipQueensrÿcheRiot WarshipPlate Core
Pseudo-Cores DeathDeath MK II (DeathDouble) • Death MK IIIBeta CoreNobilTriple CoreCrash Bam
Tetran variants Tetran (Zylom) • Covered TetranCrystal Core D-X02Laser TetranTenny Rop