Commander Keen: 2
Cheat :
Items:Hold T + A + B for 99 rounds of ammunition and an extra life. More items:Hold C + T + [Space] to receive the pogo stick, all key cards, and ray gun charges. Alternatively, press [Ctrl] + [Tab] + [Space].Invincibility:Hold G + O + D. This also allows better jumps.Level skip:Press [Shift] + [Tab] while at the map level.