http://www.g-t-r.de/site/spiele/flash_ga/rbob/mainRB.swf Excellent game, although the instructions are in german. Below is my summary: You have to jump Bob through the level, landing safely. Stars are optional, just extra points. The black hemisphere around Bob is the angle and power. Pick the angle and click the point for power - longer = stronger. The game marks where you clicked, with a red blob being when you died, and a green one for when you landed safely, allowing easy replication. You also have "air brakes" (a limited number) - if you're going to overshoot and/or die, clicking the mouse button immediately stops all motion, then you fall vertically down. Sounds complex? Its not. And its addictive. A word of caution to the work users - its got LOADS of sound, so shuffle the volume dial DOWN. I made Level 8 - who can beat that ?