Game: Heart of The Planet
Play the game immediately: http://www.kongregate.com/games/logicow/heart-of-the-planet 2D flash Platformer with a small file size. I was aiming for the 4kb diversifier but it's harder than it seems. :) I ended up with a 9 kb file. The idea behind the game is that by collecting powerups on a planet, it drains the planet's resources and makes it collapse. What the powerups do isn't directly obvious, so here it is: Red heart: allows you to shoot with the A/Z/Space keys. Cyan heart: allows you to jump a second time in mid-air. Blue heart: allows you to dive underwater. Green heart: mostly there for storyline / narrative reasons :) If you're having trouble running at a constant framerate, try running it in Google Chrome.
True Colors: The game uses only the basic 16 colors: black, gray, silver, white, maroon, red, olive, yellow, green, lime, teal, aqua, navy, blue, purple and fuchsia. See color chart
Atari Age: The game must be, at a maximum, 4Kb in size.
Bigger Picture: The game touches on a political, environmental or social issue.