That's Gibbage as in "gibs," from "giblets"--the body parts strewn across the screen in FPS games like Doom and Quake.

Gibbage is a truly odd and heart-warmingly gory game that combines the mechanics of retro platformers with the aesthetic of the modern first-person shooter. The graphics are cartoony, and would not look amiss on a NES or pre-CD-ROM PC; the gameplay is deathmatch shooting madness. Your avatar runs and leaps about, gathering powerups and dispatching your foe with massive firepower, a 3D game's gibs replaced with pixellated blood.

2005 IGF Winner for Excellence in Audio

Global Defense Network is, uh, a rhythm shooter. If that's possible. That is, as fast-paced electronic music plays, you shoot various objects whizzing about the screen--as you might in a shooting gallery, except that there are a wide variety of potential targets that behave quite differently. As you play, you unlock new levels, with new music, new targets, and new weapons for you to use.

Be a Giant Transforming Battle Robot

Let your inner twelve-year old say "Cool!".

Gun Metal is a level-based third-person shooter in which you control a mech--a giant battle bot--that can also transform into a jet aircraft. In a series of levels, you battle enemy tanks, hovertanks, aircraft, artillery, and so on, generally with some ground support from friendly troops. Kind of mindless fun, and maybe not the most creative game ever published, but hey, at ten bucks, it's a pretty good deal.