Fuse is the Free Unix Spectrum Emulator by Philip Kendall, an emulator for the Sinclair ZX Spectrum, a home computer that was very popular in the 80s.

Changes:

– Buttons 1, 2, A, B, Plus and Minus are now user defined. By default they are mapped to joystick fire. To define them go to menu Options/Joysticks/Joystick 1…/Button Mapping
– Added ability to save settings: To manually save settings go to menu Options/Save. You can also set auto-saving settings to on in menu Options/General. Settings are automatically loaded on startup. They are located in sd:/apps/fuse/.fuserc. This is an unofficial patch.

http://wiibrew.org/wiki/Fuse