mGBA is a Game Boy Advance emulator written in C. The project started in April 2013 with the goal of being fast enough to run on lower end hardware than other emulators support, without sacrificing accuracy or portability. Even in the initial version, games generally play without problems. It is loosely based on the previous GBA.js emulator, although very little of GBA.js can still be seen in mGBA. Read more about mGBA v0.5.2 (GBA emu for Wii)
Visual Boy Advance is a Game Boy / Game Boy Advance Emulator for Wii / GameCube, based on VBA-M. The code is a continuation of Softdev and emu_kidid's efforts, and uses libogc and devkitppc. The GUI is powered by libwiigui. Read more about Visual Boy Advance GX v2.3.5 (GBA emu)
mGBA is a Game Boy Advance emulator written in C. The project started in April 2013 with the goal of being fast enough to run on lower end hardware than other emulators support, without sacrificing accuracy or portability. Even in the initial version, games generally play without problems. It is loosely based on the previous GBA.js emulator, although very little of GBA.js can still be seen in mGBA. Read more about mGBA v0.5.1 (GBA emu for Wii)
EasyRPG Player is an open source implementation of the RPG Maker 2000/2003 engine. Get a RPG Maker 2000/2003 game and place the Player (boot.dol) in the root directory of the game (that's where RPG_RT.exe is). The program has no file browser, each game really needs its own boot.dol! Read more about EasyRPG Player v0.5 (Wii Port misc)
Genesis Plus is a Sega Genesis / Sega Megadrive / Sega Master System emulator for Wii and GameCube. Additionally a very simple SDL port for Win32 is available too. This is a port of Charles MacDonald's Genesis Plus, with plenty of improvements. Read more about Genesis Plus GX (15-10-2016) (Multiple emus)
SNES9x GX is Super Nintendo Entertainment System / Super Famicom emulator based on SNES9x, ported to the Wii. The GUI is powered by libwiigui. SNES9x GX MOD is a modification of the official SNES9x GX by Zopenko. Read more about SNES9x GX MOD v4.3.6 (Beta 4) (SNES emu for Wii)