Base is the seventh and final stage in the original Gradius. It is the mothership of the Bacterian Empire's invading forces.


The level is filled with the mechanical enemies that had been previously seen throughout the game. After passing through the Electronic Cage and mechanical guard arms that resemble Tentacles, the Vic Viper passes through a closing door and finally reaches the leader of the invading forces, the Xaerous Brain.

After destroying the final boss, Vic Viper escapes the base right before it explodes.




Ships Vic Viper
Stages VolcanoStonehengeMoaiReverse VolcanoWasteland (PCE) • TentacleCellBase
Sub Bosses VolcanoZub RushMother and ChildIron MaidenTentacleElectronic Cage

Re-Bone (PC Engine) • Tornado (MSX) • Tyran Pace (MSX)

Bosses Big CoreCell NucleusXaerous Brain
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