Donuts in Danger (which despite the name, has nothing to do with big fat cops staking out criminals in police cars) is a frantic Space Invaders style game where you can upgrade weapons and blow enemies away over an impressive 45 levels - and there donuts involved at some stage.
The basic aim of Donuts in Danger is to help the Martians save their donuts from the "Cube-Clan scumbags" as the developer calls them. You have to blow them up and collect credit crystals which you can then spend them in the space shop to upgrade your gun.
The problem is that the power-ups don't seem particularly potent. For example, it's hard to see a difference between the various guns you upgrade especially in the early stages, although as time goes on you can get some pretty mean equipment. The graphics are also a bit lame although since it's a Space Invaders style emulator, and because the gameplay is pretty fast paced, this can be forgiven.
Donuts in Danger is fast, furious and a lot of fun although it would have been nice to have had some meatier weapons in there.