Well, here are my 2 cents to the 4-hour-game-making challenge. The game is really really simple, classic stuff, nothing fancy, nothing new. If I have time I'll probably add some boss or something. But for now I think the old-arcade-graphics mixed with the seizure-inducing stuff is more than enough to keep a man entertained for 2 minutes.
WASD or ARROW KEYS to move
SPACEBAR to shoot
Shoot the invading ships near the center, else they wont explode. Keep this in mind specially for the space-invader-like mother ship that appears from time to time.
Be careful with debris, it can kill you.
Graphics and Programming by Feysoura
Music by James Ronaghan, Michael Genato, and Roy Dank. Taken from freeplaymusic.com
Sound Effects made with SFXR by Feysoura.
When you lose you might get scared. I was thinking of turning the volume down on that sound but hell, its fun to be a little scared and/or annoyed when you lose.