Wiki: link here

Help: F3
Movement: Up/Down/Left/Right arrow keys
Shooting: W, A, S, D, and also Q, E, Z, X, C if that's easier
Changing resolution: F8, Up/Down and Enter
Toggle fullscreen mode: Alt+Enter
Changing colour scheme: F9, Up/Down and Enter
Quit: Control+Break or Escape, then N and Enter... If you can...


Good luck...