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:

Massive core update finally completed. This core update includes many improvements, such as:
Joystick configurations now savable. No corruption has yet occurred through dozens of saving/loading cycles.
Game is much more stable. Random crashes seem nonexistent.
Sound distortions are at an all-time low. Pops/crackles hardly noticeable, if at all.
This core update also includes all previous improvements, such as the on-screen keyboard and menu exclusions/changes to avoid any possible problems resulting from settings incompatible with the Wii.

http://wiibrew.org/wiki/OpenTyrianWii