FCE Ultra GX is an NES emulator based on FCEUX. With it you can play NES games on your Wii/GameCube. The GUI is powered by libwiigui.
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SNES9x GX is Super Nintendo Entertainment System / Super Famicom emulator based on SNES9x, ported to the Wii and GameCube. The GUI is powered by libwiigui.
BootMii Configuration Editor by Pembo allows you to modify the BootMii.ini file on the SD card to change the settings, and also to enable/disable or swap BootMii implementations by renaming the directories, without having to bring the SD card over to the PC and edit/change things.
WiiMC (Wii Media Centre) is an open source media player for the Nintendo Wii written mainly by Tantric and rodies.
Retrogaming Times Monthly #98 is available. RTM is a retro magazine, sometimes with focus on the homebrew scene.
Dwarf Connect 4 is a Connect 4 game ported to Dreamcast featuring three levels of difficulty.
In The Amazing Adventures Of Echo by Drumpi you must fight, jump, find... and shot.
EgoTrip updated his Nintendo DS homebrew game Ice Slider. Ice Slider is a puzzle game, with the objective of collecting 10 coins on each level. However, there is a catch, once you start moving, you cannot stop until you hit an obstacle. Obstacles include brick walls which cannot be passed, ice walls that break when bumped into, and directional walls which you can only move through in the indicated direction. There are 80 levels in total, which should keep you busy for a while.
DOSBox Wii is a port of DOSBox to the Wii using SDL Wii. It also features a Home menu powered by libwiigui.
FBZX is a ZX Spectrum emulator for FrameBuffer written by Sergio Costasand ported as FBZX Wii to Wii by Oibaf.