OpenTyrian is a port of the DOS shoot-em-up Tyrian. Tyrian is an arcade-style vertical scrolling shooter. The story is set in 20,031 where you play as Trent Hawkins, a skilled fighter-pilot employed to fight Microsol and save the galaxy. This port is done by Molokai.

Changes:

USB support added for loading and saving OpenTyrian data files (make sure all files in /popkey and /tyrian subdirectories are in place; tyrian.sav, tyrian.cfg and joystick.conf are optional).
Several background code optimizations not yet reflecting in game performance.
OSK bugfix: “9” now works on both name input screens.
Bugfix for “Low” detail text display in Pause menu.
Default detail level set to “Pentium”
Wild detail mode enabled in Pause menu detail selection.
Fix for default HAT assignments (used to assign all directions to HAT-left).
Joystick configuration menu completely reworked (details in Joystick Config):
Now displays name of joystick at top instead of number.
Also displays button names instead of numbers now.
Finally, DPAD directions dynamically displayed based on whether Classic is plugged in or not.

http://wiibrew.org/wiki/OpenTyrianWii