Emulators that you can run on Wii devices

Emulator	Console	Platform	FileSize	Emulator
uMSX 0.2	MSX Computer	Wii	0.7MB	Download
Hatari	Atari ST	Wii	2.1MB	Download
WiiColEm 0.2	ColecoVision	Wii	2.3MB	Download
WiiXL 0.1	Atari 5200 SuperSystem	Wii	0.5MB	Download
WiiXL 0.1	Atari 800	Wii	0.5MB	Download
MiiSX 0.4	MSX-2	Wii	0.5MB	Download
Wii7800 0.3	Atari 7800 ProSystem	Wii	0.8MB	Download
AtaWii beta-1	Atari ST	Wii	4.3MB	Download
DOSBox Wii 1.7	DOS	Wii	1.8MB	Download
UAE Wii 12	Amiga 500	Wii	3.2MB	Download
BlueMSXWiiGamePackRev2 1.0.3	MSX-2	Wii	43.8MB	Download
ColEm 1.0	ColecoVision	Wii	0.5MB	Download
WiiHandy 0.4	Atari Lynx	Wii	1.1MB	Download
NeoCD-Wii 0.5	SNK Neo Geo	Wii	0.4MB	Download
HatariWii 0.0.5	Atari ST	Wii	0MB	Download
C64-network 2.4.1	Commodore 64	Wii	1.6MB	Download
Genesis Plus 1.7.5 RC1	Game Gear	Wii	5.2MB	Download
Visual Boy Advance GX 2.3.6	Gameboy (GB)	Wii	1.3MB	Download
GxGeo 20101119	SNK Neo Geo	Wii	0.4MB	Download
SMSPlus	Game Gear	Wii	0.5MB	Download
GxGeo 20101114-v2	SNK Neo Geo	Wii	0.4MB	Download
RetroArch - Wii	Nintendo DS (DS)	Wii	20MB	Download
PCSX-Revolution rev50	Playstation (PSX)	Wii	0.4MB	Download
WiiSX Beta 2.1	Playstation (PSX)	Wii	0.8MB	Download
WiiSX Beta 2	Playstation (PSX)	Wii	0.8MB	Download
Snes9x GX 4.3.7	Super Nintendo (SNES)	Wii	1.4MB	Download
Snes9x GX 4.3.6	Super Nintendo (SNES)	Wii	0MB	Download
Visual Boy Advance GX 2.3.6	Gameboy Advance (GBA)	Wii	1.3MB	Download
Wii64 Honey Beta 1.1	Nintendo 64 (N64)	Wii	1.4MB	Download
Wii64 Tiizer Edition	Nintendo 64 (N64)	Wii	0.4MB	Download
Visual Boy Advance GX 2.3.5	Gameboy Advance (GBA)	Wii	1MB	Download
Wii64 Beta 1	Nintendo 64 (N64)	Wii	0.6MB	Download