Core Reactor is the boss of stage 2 in Gradius: The Interstellar Assault.


It is the Reactor of the Coreship which attacked the player and his fleet at the beginning of the game.

Attack patterns

The Core Reactor attacks the player with its guns on the top and bottom which can be destroyed. It also makes electricity blasts from the ceiling and the floor. Finally, it will pull or repel the player from itself when it spins around while doing the two aforementioned attacks.


Game Boy Gradius games
Ships Vic ViperCoreship
Nemesis Stages VolcanoCellMoaiBoneFortress
Gradius: The Interstellar Assault Stages RemainsBattleship InteriorAsteroid BeltPlanet SurfaceFortress
Nemesis Bosses VolcanoSuper Big CoreZub RushCrawlerZigzagStrikerAmbRecklessMother Computer Z
Gradius: The Interstellar Assault Bosses Infected StatueCore ReactorVolcano CoreFortress GateGuardian CoreEscape Ship
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