Astroid is a NES homebrew game by ObscenelyTrue. The goal of Astroid is to get down as low as possible while avoiding asteroids. By pressing the A button, the flying saucer goes right; otherwise, it goes left. The asteroid field becomes denser with time to make more exciting the game.

Features:

* Procedural generation of the asteroid field
* Increasing level of difficulty
* Score
* Vertical parallax srolling

http://ludumdare.com/compo/minild-52/?action=preview&uid=13886