Use the left and right arrow keys to avoid the Asteroids. If playing two player, P2 uses the mouse to control the player. Levels are adjusted and go up according to a timer every 20 seconds that make more asteroids come at you. After you lose all your hearts the game is over and either click on the reset button or click on the game over want to try again text.
I mainly based and worked my project around the whole Extensions ideas and project here: http://scratch.mit.edu/studios/475619/ I tried my best to include all these features in a game and got 8/9 of them. I really couldn't figure out a way to incorporate the rewards aspect into a game with everything else. I hope to add lasers that can destroy the rockets at sometime but not a top priority for me at this time.
