UPDATE 9/16:
*Fixed invincible, now you wont die if you spawn or an asteroid spawn on top of you.
*Bullet travels further
*Pause not working when game is over
*Corrected "game over" text
*Adjusted teleport parameters
*Optimized the code

Todo:
*Gotta clean up the collision shapes
*Optimize more

Anything you guys would like to see in the game?

It's a work in progress, mostly created for fun. Few twinks to work out and some optimization needs to be done but the game is fully playable and I since I won't have access to my computer for a while I decided to upload it and see what you folks think.

Have fun.

Controls:
Arrows to move
Space to shoot
P to pause/unpause

2 power ups, immortality and extra bullet
1 Enemy, be careful!