Pro Action Replay MK 3

The (Pro) Action Replay is a series of cheat devices by Datel for various computers, consoles, and handhelds. Besides cheating, they can be used to explore unused game content or crash games in a variety of ways.
The Pro Action Replay MK 3 is the third and final version of the device for the SNES, featuring a new interface, more ROM-patching support, and built-in codes for a variety of games. Features include the Mega Cheat Input Screen, Advanced Cheatfinder, New Slo Mo Feature, Universal Cheat System, and Universal Adaptor Feature that allows NTSC games to be played on PAL systems.