It works. I like Coin.rotateY = time * 50 * time; better, though. It has the right speed pick-up for what I'm doing. I'm going to sustain it's speed with this script: if (time > 20) Coin.rotateY = time * 1150; Otherwise, after 500 frames or so, it slows back down and begins to rotate the other way.

Does anyone know where to find some sample expressions? I'd like to look at some to get the feel for it since I'm just starting out. I want to figure out how to make things do something, adjust the speed for a given amount of time, and then slow it down. Stuff like that. I figure that if I can see a few simple samples here and there, I can grasp it.

*edit* one more thing, why does Coin.rotateY = time * 50 * time; work? I don't see the logic in the equation.