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Gradius Wiki

Bubble Eye (バブルアイ?) is the boss of Bubble Zone, the second stage of Gradius III.


The Bubble Eye resembles a massive bubble with arteries and veins built inside. In the SNES version, it is called the Bubble Brain.

Attack patterns

The Bubble Eye resides encased within a large bubble apparently made of a gelatinous substance which acts as a shield and that constantly regenerates, so fire needs to be kept on it to inflict any damage. It will constantly shoot ricocheting bubbles from its sides and will occasionally attempt to fire bubbles from the front; however, since this is also its weak spot and they are destroyable, this attack rarely matters.


Gradius III
Ships Vic Viper
Stages DesertBubble ZoneVolcanic PlanetHigh Speed DimensionMoai ZoneCell PlanetProminence PlanetPlant PlanetCrystal ZoneBoss RushMechanical Base
SNES exclusive stages High Speed ZoneFortressCell
Bosses GoliathBubble EyeGodreiBig Core MK IIIDogasVaifTwin Vaif (SNES) • GregolWyvernVulture DragonChoking WeedLizard CoreBeacon (SNES) • TetranCovered CoreBig Core MK IICrystal CoreDeath MK IIDellinger CoreDisruptShadow GearShadow Gear MK II (SNES) • Big CoreGolemBacterian
Organic bosses
Space entities NucleusIntruderPhoenix (Geezer Butler)GoliathBubble EyeWyvernVulture DragonBlizzard CrawlerYorogaton ChimeraGilladorVolleoneDoomLynyrd SkynyrdTriumph KicksGawGigaKiller Dwarf
Body horror AbadonGolemZylomBig EyeGregolMad SkinBrachion EyeBiterBerialHuge HeartCrawler (X) • Infected Statue
Plantlife Choking WeedStinger KidHunter FangGiga's RoseDendrodiumHans Naughty