At the Sound Test screen, type 'cheater'.
A button should appear. Click it to go to Level Select.
To play the final bosses, choose Enter a Password from
the Game menu.
Type fb1, fb2 or fb3 for final boss 1, 2 or 3 respectively.
Click OK. Make sure that you're in a level when you do this,
otherwise you could end up playing as both characters at the