ZZZ(notgame):Game Genie

The Game Genie as well as the "Action Replay", of which it is a counterpart, serves to cheat in the games, going directly to modify in the memory of the Megadrive the values ??of your lives / money / ammunition / time counter, in order to the Preventing you from diminishing (which gives you infinite lives).

This is, say, the universal "trainer" of the Megadrive.