After many hours of work, I give you my best project I've ever made: Space Platformer! The rules are pretty straightforward: use the arrow keys to move, touch the end of the screen to progress, and don't touch the asteroids. This project is in beta, so many features are not there. I'm planning on adding enemy spaceships, many more levels, and possibly different game modes. It is kind of a test to see if people even like the game, and if they do, I will continue working on it.
Credit to Terraria for the awesome music. Credit to Aether: a Platformer for the idea of flying in a platformer. Credit to @cs5044374 for the idea to the last level.