Not your average big core size, it can squish mini ships and blast big lasers to take down large battleships.
100 times larger than the Vic Viper, the Coreship is a massive, mothership-sized version of a Big Core warship. It's first found when the player is captured shortly after the ruins section of Gradius: The Interstellar Assault. Rather that fighting the ship head-on, the player ends up being pulled into its interior. This becomes the second stage of the game.
While the player never fights the Coreship head-on, it does tangle with the Coreship's reactor. The reactor never directly attacks the player, but is able to suck the player forward as varying speeds. There's also a pair of cannons mounted above and below itself (which can be destroyed) which fire three-way shots diagonally. Electrical panels line the ceiling and floor and create impassable walls of electricity when they discharge.
|Game Boy Gradius games|
|Ships||Vic Viper • Coreship|
|Nemesis (Game Boy) Bosses||Volcano • Super Big Core • Zub Rush • Crawler • Maru Maru • Striker • Iron Maiden MK 2 • Reckless • Mother Computer Z|
|Gradius: The Interstellar Assault Bosses||Infected Statue • Core Reactor • Volcano Core • Keeper's Core EX • Guardian Core • Escape Ship|
|Big Cores||Big Core MK I • Big Core Rev. 1.2 • Big Core MK II • Big Core MK II Kai • Big Core MK III • Big Core MK IV|
|Big Core variants||Beacon • Blaster Cannon Core • Bubble Core • Circle Core • Coreship • Crater Core • Crystal Core • Dellinger Core • Desert Core • Heaven's Gate • Juggler Core • Lizard Core • Neo Big Core • Perla Meralda • Rexion Core • Rolling Core • Rotating Launcher • Shining Core • Super Big Core • Terra Core • Triple Core (Life Force) • Vanishing Core • Viva Core • Genocide Core|
|Core-style bosses||Abandon Warship • Bubble Eye • Covered Core • Covered Core MK II • Dead End • Kraken • Mayhem Warship • Metal Slave • Misfit Warship • Queensrÿche • Riot Warship • Plate Core|
|Pseudo-Cores||Death (Gau) • Death MK II (DeathDouble) • Death MK III • Beta Core • Nobil • Triple Core|
|Tetran variants||Tetran (Zylom) • Covered Tetran • Crystal Core D-X02 • Laser Tetran • Tenny Rop|