HHeretic is a faithful source port of the original Heretic game by Raven Software.

Installation:

1. Extract the .zip directly into your apps folder
2. Copy heretic.wad into sd:/apps/HHeretic/heretic.wad
3. Launch the game using your loader.
4. NOTE: HHeretic needs space in the SD to write files during the game.

Changes:

USB Support
GC Controller Support
Classic Controller Support
Wiimote and Nunchuk controls rewritten to take advantage of the Wiimotes IR
Fixed saving and loading
Other various bug fixes and tweaks

http://wiibrew.org/wiki/Heretic_Wii