Bomb targets as indicated
        
        Avoid missle launchers

             joystick only


Any key* * * * * * * * * * * * * * start

Joystick * * * * * * * * * * * * * *move

B0 (on earth)* * * * * * * * * drop bomb

B1 (on earth)* * * * * * * * * *drop box

Space* * * * * * * * * *enter/exit space

B0 (in space)* * * * * * * * fire lasers

Ctrl-S * * * * * * * * * * *toggle sound

Esc* * * * * * * * * * * * * * * * pause