The Action Gamemaster was a 16-bit portable game console announced by Active Enterprises, infamous for Action 52, in 1994 - it would've had a slot for games designed for it, as well as adapters that would allow it to play SNES, Genesis, NES, and CD-ROM games, alongside adaptors that served as a TV tuner and cigarette lighter.

The console never released due to Active going out of business, and if it were to release it is unlikely that it would have bared much resemblance to the overly-ambitious original plan due to emulation not being in an advanced state at the time and patents for the 3 game platforms still being active.

Notably, the Action Gamemaster is also the name of a character in the NES version of the Cheetahmen minigame of Action 52.