Commander Keen 1, 2, and 3 Cheat Codes

In-Game Cheat Codes
Get 99 ammo and extra life
Press 'T' + 'A' + 'B'

Get pogo stick, all key cards, and ammo
press 'C' + 'T' + 'space'

Invincibility
press 'G' + 'O' + 'D'

Skip level
Press 'shift' and 'tab' in map view, then walk through buildings

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