This robot looks great guys! I've got a suggestion, besides those that haven't already been mentioned, that I feel would benefit you guys greatly.
I complete agree with using your robot as a hard stop against the pyramid. One of the things you might want to try is adjusting the angle of you shooter, if it is at all possible, and trying to shoot from the back of the pyramid through it. that would greatly increase the speed at which you could collect Frisbees and shoot them, and it already looks like you have the distance to do it.
The neon looks really cool too 