R.I.P.

Description
As either Death, Halloween, or Rock-n-Roll, the player must man a stationary turret in the war against von Pigman's Other World Army. In each of the forty levels, swarms of advancing enemy soldiers and dogs need to be mowed down, using a bevy of weapons. Bonus skeletons drop these when shot, as well as shields, health packs, explosives, and other surprises. By clicking the items, or holding the cursor over them for a short while, they are activated. Only the last picked up weapon can be used at any given time. It is possible to ricochet bullets off rocks, or shoot the explosive barrels found in many levels. Killing enemies yields experience points and when the experience meter fills up, the player can improve their combat skills, such as the chance to freeze enemies.
Besides the story mode, the game also features a rush mode where the goal is to survive as long as possible. There is a less violent toned-down kids version included as well.