Great shoot em up game using 3D graphics card power. Great playability and balance. like a modern Fying Shark, I really recommend it. Only 3 levels but they are big, with two bosses in each so more like 6 levels really. Take a while to master. When I finished it put me at the start and it was just much harder and I managed to finish it again, so wired was I. Anyway, give it a blast, you won't be disappointed.
http://www.smallrockets.com/pc/starmonkey/
http://www.smallrockets.com/pc/starmonkey/