Boost Core (ブーストコア Būsuto Koa?) is the first boss in the final stage of Gradius Gaiden.


Boost core is a unique Core warship. It is special in the fact that the battle is fought while it is moving. It is fought during the "speed" part of the final level of Gradius Gaiden, and smashes through many barriers during the fight.

Attack patterns

Boost cores attack pattern is simple: It will continuously fly backwards and shoot at you. The guns it uses to shoot at you can be destroyed, however, and this will make it shoot a fair easier to dodge, star-like projectile instead. The boost core also has other ways to attack you, it's blue boost is lethal (only appearing on loop 2+) and you can destroy the back ends of it, which will fall back and can kill you. Most notably, it smashes through walls, which means you have to follow it, or you will crash. When it is destroyed, it flies forward, and explodes off-screen.


Gradius Gaiden
Ships Vic ViperLord BritishJade KnightFalchion β
Stages Beyond the White StormRequiem for RevengersInto the Crystal CageRuins of SilenceOrganic FortressGreen InfernoOn the Event HorizonFormidable GuardiansFate...
Bosses Blizzard CrawlerGraveNobilShining CoreMoai DimensionMad SkinStinger KidHunter FangGiga's RoseKrakenLaser TetranDeathDoubleParasite CoreTriple CoreDeltatryJuggler CoreNeo Big CoreHeaven's GateBoost CoreGunner WallHeavy DuckerSolO.V.U.M.
Core Warships
Big Cores Big Core MK IBig Core MK-I Rev.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 CoreGenocide CoreOdin Core
Core-style bosses Abaddon WarshipCovered 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
Parody Cores Candy CoreDecoration CoreDecoration Core MK IIViva Core
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