This is cool! After a couple tries, I got 01:13:13 without using shortcuts, but I can see how that time could be slashed with the right route - I'm tempted to look for that optimal route myself. I noticed that sometimes, when I fell off and respawned, I would be facing backwards on the track, and I wouldn't necessarily be placed back in the area from which I fell. I also agree with Robin about the camera, but I totally sympathize with 3D cameras being super hard to get right. One thing I would suggest is focusing the camera on a point in the air above Speedy, so Speedy is near the bottom of the frame (or the top of the frame, when gravity is reversed), then using the mouse controls to orbit around that point, instead of panning and tilting like it is now. That should make it easier to see more of the track, especially when there's a bump ahead.