This is one of the oldest cheat thingies that I know of! Even though you may not have one of the systems ( SNES,Sega,Etc...) It's can really help your friend or cousin that still holds on to their old systems out of really tight spots! They could even give you something in return! Anyways, one of the main reasons to get this old cheat thingies is that it's almost just like gameshark! It can give you unlimited lives, unlimited sheilding, invicibility, etc. but you can have a great time trying to beat a really old (but really good!) game that is really hard!