Wow. My expectations were very low when I saw only a 'start' and 'continue' button on the menu screen. No controls, help screen, what the hell? So I clicked start. It quickly became clear that rules weren't necessary, the controls are in the comments, and everything you needed to do was obvious.
The game was really fun to play. It did get increasingly complicated, but not to the point where you wanted to pull your hair out. The graphics were minimal, but the controls were responsive and it was challenging enough to keep you focused. The only things I would add would be more powerups and more medals (like 'died XX times' or medals for each powerup, door passed through, etc). Made me want to check out your other submissions. Good job!