Genocide is a run-and-gun platformer that has been built upon the source code of Abuse (Crack dot Com). It shares the exact gameplay with highly destructive environments where the player moves the character around with the keyboard keys and aims with the mouse.
This fixes level names and objectives not being displayed in the status panel when pressing F1.
This contains two demos (versions 0.93 and 0.97) that I found on FilePlanet for original release of Genocide.