Tatsuya Koyama's Genetos starts off as a basic fixed shooter, giving you a cannon to push around the bottom of the screen and fire at advancing rows of Space Invaders-esque aliens. By the final stage of the game, though, you're dodging thousands of bullets while darting across the stage to shoot streams of enemy-seeking lasers at ridiculously designed bosses.

Genetos, which saw its 1.00 version released last week, is designed to take you through the evolution of shoot'em ups, updating your ship to handle the challenges introduced with each level/generation. In the third stage, for example, your ship receives the ability to drop bombs (along with its increased firepower) to deal with the dozens of enemies filling the screen.

You can download the PC game for free and see screenshots at Genetos's official site.

[Via Shmuptacular]