CHEKIT: It's like that old game Cannonball, with nicer graphics and more math.

No matter how badass or how schlumpy the graphics, give a game good gameplay and watch folks from far and wide play the living crap out of it.

This site is chock full of Flash fun that fits the bill. Eagle Eye, especially, has been tossing chunks of my productivity into a blender, and pureeing it into a delicious, creamy smoothie of time-wastingness.