Abuse is a side-scrolling action game with a unique control system. You move the player with the arrow keys, while you aim his gun with the mouse.
In the original shareware version, released in 1995, there were four levels, and a highly flexible level editor.
You are the only person immune to the abuse gene, you must therefore, fight your way through mutants so that you can save the world and escape to freedom. You use a great variety of weapons and skills (i.e. flying) to fight through those humans who are not immune, like yourself, to the gene.