GameHacking.org | Commander Keen (USA, Europe)

Languages	Size	CRC32	Region	Serial
English	1M	4AF4CC9C	USA, Europe	CGB-BCBE-USA, CGB-BCBP-EUR

Get Items From Anywhere by nolberto82 Game Genie 004-E48-91E 004-EE8-A26
Have All Keys by InterAct GameShark 91FF95C9
Infinite Continues by InterAct GameShark 91633DC9
Infinite Lives by InterAct GameShark 916334C9
Invincibility by nolberto82 Game Genie 3EF-13B-4CA AF0-F8C-7F4
Jump in Midair by nolberto82 Game Genie C21-86A-C41 E61-84A-191 C91-83A-C49 6A1-82A-915