Remember those old Genesis games where you’d get stuck on the same boss for days? Pro Action Replay 2 was basically magic back then—type in a code, and suddenly you’ve got infinite lives, all weapons unlocked, or even access to levels the developers never meant for you to see.

It wasn’t just about cheating, though. Some codes did weird, hilarious things—like turning Sonic into a floating sprite mess or giving enemies ridiculous speed. Half the fun was seeing what broke when you messed with the game’s guts.

If you’ve still got a Genesis hooked up (or an emulator), this thing is a nostalgia bomb. Just don’t blame me when you accidentally corrupt your save file by entering the wrong code.