Halo 2600

Halo 2600 is an action/adventure game loosely based on the Halo series. You, as the Master Chief, fight your way through various enemies to find a key and enter the Covenant base. Fight your way through here to ice planes and on to the final boss battle. Along the way, you can get speed boots to run faster, a faster-firing gun, and a shield that will let you take one hit without damage.