Use arrow keys to move. Your goal is to survive as long as possible. When you grab the crystal, you are allowed to go through walls, and get 10 extra points. The effect wears off after 30 seconds, and can only be used once. Touching the walls, the edge, or one of the floating grey blocks will end the game. WALL will appear in the right side of the screen when you are allowed to pass through walls. The blue/green rectangles are portals, and will teleport you to their matching rectangle. Press [SPACE] to stop.
This project is a work-in-progress. Please tell me via the comments about all glitches that you encounter.