Commander Keen: Marooned on Mars чит-файл №1

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.

Pogo bouncing in air:
Enable the "Invincibility" code, then take out your pogo stick and hold [Ctrl]
to go to the ceiling. Release and you can keep pressing it to stay in the air.
This works great for things such as teddy bears.