I was hoping someone would port the game - and someone did! Wii homebrew developer nuvalo has released a Wii homebrew translation of the classic shooter game, Tyrian. Here is the controls system for OpenTyrianWii. Please read the documentation for more information:

CONTROLS
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This version should let you use an usb keyboard, usb mouse, gamecube pad and wiimote. Here
are the button mappings:

Keyboard:

Arrows: MENU NAVIGATION & SHIP'S IN GAME MOVEMENTS
Space: Button 1/shot
Enter: Button 2/Change shot mode/Start
Left Control : Button 3
Left Alt : Button 4
Escape: Cancel/Menu


Gamecube pad:

[ANALOG/DIGITAL PAD] MENU NAVIGATION & SHIP'S IN GAME MOVEMENTS
[A] Button 1/ Start
[b] Button 2/ ESCAPE (Cancel)
[Y] Button 3
[X] Button 4
[Z] ESCAPE (CANCEL)
[START] ENTER (Start)

Wiimote:

[DIGITAL PAD] MENU NAVIGATION & SHIP'S IN GAME MOVEMENTS
[1] Button 1/ Start
[2] Button 2/ ESCAPE (Cancel)
[A] Button 3
[b] Button 4
[Menos] ESCAPE (CANCEL)
[Home] ENTER (Start)


Mouse (untested, reported that works)

Move the mouse to move the ship
Left button: Shot
Right button: Change shot mode