Star Monkey

Star Monkey is a shareware space shooter game that follows the legacy of such classics as Raiden, Aero Fighters, etc. The plotline is inconsequential, and involves aliens that try to do something bad and which you must blow up. You'll battle waves after waves of enemy ships and monsters and confront huge end-level bosses while collecting power-ups and raking up points in your little but powerful ship.

The game uses a 3D engine which boasts several graphical gimmicks like 32-bit color depths, colored lighting, dynamic shadows, etc. There's no multiplayer support, but you can upload your scores to Small Rocket's website and have them ranked against other fellow star monkeys.