JonthanD said:
I have a really old NES emu I use on my DS, it doesn't have cheats but it has something really awesome....
Rewind!!! I can be playing SMB and fall down a pit, hit the L button and watch myself fall up out of the pit and start playing from as far back as like 10 seconds (I think its that far back but I am not sure)
Its like a cheat for every game... lol
I wish more emulators had this feature!
That is NesDS. It was the first emulator to have that feature, the one for the PSP got it later. The problem with that feature is that it has to store the last X seconds of gameplay, including CPU instructions, graphics, and sound which makes it hard to do for anything more complicated than the NES.