You could define your own key mappings -- but it didn't complain when one player had the 'CTRL' and 'ALT' among their keys, and the other had 'insert' and 'DELETE' among theirs. Now imagine 'ctrl', 'alt' and 'delete' being repeatedly hammered on during a DOS game. Oops. :-?
Hahah that'd be funny. Your oponent goes to do a 9 Hit Combo so you just hold down Ctrl and Alt. "Oh uh, I think It overheated from your extreme move."