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The Blaster Cannon Core (ブラスターキャノンコア Burasutā Kyanon Koa?) is the fifth boss in Gradius V. It is the guardian of the Asteroid Front Base.

Attack patterns

The Blaster Cannon Core can be very difficult to destroy due to the asteroids that are constantly incoming and how you need to use them to defend yourself against incoming fire.

It has two attack phases:

Phase 1

The Core maneuvers through the asteroid field laying many mines that explode and release bullets all around them. At the same time, it loosely attempts to ram you by moving into your row after each pass. Although very risky, you can dispose some mines before they detonate. After some time, it will reappear on the right and release its wings.

Phase 2

The Core starts shooting many bullets aimed at the player and the only real defense against them are the numerous asteroids floating around. Next, the cannons charge up and release laser streams that break up the asteroids. This is also the moment when boss is most vulnerable.


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 MK-I Rev.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)
Core Warships
Big Cores Big Core MK IBig Core CustomBig Core MK-I Rev.2Big Core MK IIBig Core MK II KaiBig Core MK IIIBig Core MK IV
Big Core variants BeaconBig Core DuoBlaster 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