Pro Action Replay

Pro Action Replay is a cheat device cartridge for the Sega Mega Drive/Genesis, not a traditional video game. It allows players to input codes that modify game memory in real-time, enabling features like infinite lives, energy, ammo, money, or stage selection in supported titles. Gameplay involves plugging the cart into the console, selecting a game, and activating cheats via buttons or on-screen menus. The game itself is the device, with built-in code lists and support for 100+ codes in later versions. What makes it stand out is its versatility for any Mega Drive game, region-free operation, and ability to bypass normal progression hurdles, often used by collectors and modders for complete runs or experimentation.