DOS Games: Sidescroller
Commander Keen Episode One: Marooned on Mars
Maker: Apogee & ID Software
Size: 238 KB
The Commander Keen series has always been one of my favorites. This is the first of the episodes, where you control Commander Keen through a variety of levels on an alien world in search of the stolen parts missing from his ship.
Press F1 during the game to pull up the help box. Here you will find the controls and more info on the game.