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Destroy the core!
~ Gradius II announcer

Background

Crystal Core is a crystalline core surrounded in ice. It appears in Gradius II as the boss of the crystal stage and in Gradius III as part of the boss rush. It is also a junked boss in Gradius Gaiden stage 2. This is one of the more interesting looking bosses. It has 4 Orange and Blue barriers and 1 Blue core. The SNES version of Gradius III calls this Monarch.

Attack Patterns

Crystal Core attacks by waving its tentacles while shooting blue small fireballs every 20% of a second from them and fires 2 Medium-Large standard Core defense lasers every second. The tentacles block all shots and cannot be destroyed. Eventually, Crystal Core will close up it's tentacles to shield the core and then release a volley of 14 lasers every 20% of a second while moving up or down, then resume normal attacking. In Gradius Gaiden the Core defense lasers are much more thinner.

Gallery

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
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