I just uploaded my first game on Kongregate: http://www.kongregate.com/games/Kresh0/rgb-asteroids. It took me a week or so to develop.
RGB Asteroids is a Asteroids clone , with some added game elements. Asteroids are colored and you need to change the color of your spaceship in order to destroy them. You can change your spaceship color to red, green and blue (RGB), so for example in order to destroy purple asteroid you need to hit it twice (with blue an red). All color combinations can be seen in game instructions.
All comments and suggestions are more than welcome.