I wasn't really sure when I had different power ups. Mainly I couldn't see whether I was invincible, had a bubble, or the pentagon. After playing a while I figured it out, but you should make it easier to tell.
I always loved joust, the power ups are a nice touch. Make it so you can push space (or anything) to go to the next level so you don't need to use the mouse.
I read a tutorial that was exactly like this, including the start button. You should add score (the high score api too), bad guys, and powerups. Then it would be a little more original.
Controls are not what I expected, I see that you push left, you move left, instead of turning left, and pushing up for thrust. You push up and you move upward toward the top of the screen (not the direction your facing).
I liked it at first, but I think you should flash the controls when the game starts, because its simple enought you don't need instructions. You should only eat them if they collide with the mouth side, not both sides.
Not bad, but its a little too simple. Right now its just a avoidance game, but to make it a really awesome game you could put some variations on it, like combos, or getting something so you can collect the red like pacman.
I have beat this twice, once with the badge, and once before the badge was made. I still haven't "recived" it, even though I went through the whole game.
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