The GP32 is a game console that plays its own commercial game as well as many other console's games through emulation--NES, SMS, GB/C, Atari 800, Amstrad, TurboGrafx, Genesis/Megadrive, SNES (though SNES is kind of slow right now), and more. It also plays movies that you encode yourself, plays mp3s/oggs/wmas, textreader, plays Doom and Quake, homebrew games, Linux, and a bunch of other things.
It's an amazing little machine, that's for sure. gp32_console
And BLU>BLU+>FLU>NLU>NDS>GBASP>GBA+Afterburner>GBA>GBC>GB>ENIGMA
PSP, LYNX, GAMEGEAR and WONDERSWAN also fit somewhere there, as do PCE portable, GAME&WATCH and Oil Panic. NOMAD does not count, and nobody's even heard of NeoGeo Pocket.
its all a matter of compression to make the nes cart fit in the gp first download sledgehammer.exe from www.gardenshed.com then lift and drop sledgehammer.exe onto the cart until it will fit, each drag and drop should decrease the size of the cart dramaticallly.. hope this helps