Play [program] Pro Action Replay 2 (europe) (alt) Online

The Program Pro Action Replay 2 was a cartridge released for the Sega Genesis, known as the Mega Drive in Europe. It was not a game but a hardware device produced by Datel that plugged into the console's cartridge slot. Its primary function was to modify game data, allowing players to access cheats, debug modes, and other features not normally available during standard play.

You do not control a character; instead, you interact with a menu system to input codes that alter the behavior of the game in the Genesis. The main objective is to activate these codes, which can grant infinite lives, unlock all levels, or provide other advantages. Signature mechanics include entering long alphanumeric sequences manually and using a built-in cheat search function to find new codes by tracking changes in a game's memory. The process can be tedious, requiring precise code entry and sometimes causing the game to freeze if a code is incorrect. Successfully applying a code feels like unlocking a hidden layer of the game, giving you direct control over its rules.