You are the alien. You live on a planet in a galaxy very far away. But recently, your planet's gravity has unexplainably increased. This has brought many calamities to your people, the newest of which have just arose. Dragged in by the new gravity, a passing comet is arriving to destroy the world. Meanwhile, a belt of asteroids is also being pulled towards your planet. You have been sent out in your spaceship to stop the asteroids and the comet. However, the comet may be a blessing in disguise. By bouncing it off of your ufo, you can destroy the asteroids. But watch out! If you let either past you, your world will be destroyed. Control the ufo with a/d or left/right keys.
This is just a basic game I put together at a TriValley CoderDojo meeting: http://scratch.mit.edu/studios/258689/ It's pretty basic, somewhat glitchy, and also rather hard to win. I found the sprites online. Thanks to AlSweigart for inspiration: http://scratch.mit.edu/users/AlSweigart/ Thanks to his website, inventwithscratch.com for a base, and for teaching me the basics of programming for this game: http://inventwithscratch.com/block-breaker-game/ You can also find his game on scratch: http://scratch.mit.edu/projects/14794072/ http://scratch.mit.edu/projects/11719281/