Aberrance

Aberrance is a futuristic side-scrolling shooter. You control a hero with a jet pack through three organic levels, each with a boss. You only have one weapon, but by picking up the M, H and P icons enemies leave behind, you receive additional firepower through small rockets. These either travel over the ground or ceiling, or seek a moving target. You need to move quickly, as there is only a limited amount of oxygen at your disposal, and only few enemies leave behind refills. The jet pack allows you to travel faster, but you need to come down regularly to recharge it. In difficult situations, you can charge your gun for a long, powerful blast.