TransBot, also known as Astro Flash in Japan and Nuclear Creature in Brazil, is a 1985 Sega Master System game. In the year 2000, Earth is devastated by nuclear war, and humanity begins to rebuild. The AI DALAUS, a leftover military supercomputer, rises to power, creating its own empire. Only the transforming CA-214 fighter can stop it.

The game is a side-scrolling shoot-'em-up where players control CA-214, able to transform into a robot. It moves with the D-Pad, shoots with button 2, and equips six weapons via power-ups. The Robot form deals area damage makes CA-214 a bigger target. There are two levels with a boss at the second level’s end. Power and Arm meters show shield and weapon energy, and extra lives are earned at score milestones. The game ends when all lives are lost.

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