I still haven't played through it all, but I am already in a rush to say the following: Awesome work dude!
I have a few ideas if that's okay.
1st_ if there could be two moving speeds, as in a specific button for sprinting (if there is one I probably missed it), that would be awesome, just giving the players an extra choice adds plenty more to the experience .
2nd_ I felt the way the character module spun with the player was a bit unconventional, not that that's bad, but for me it didn't really fit, I'd go with having the module not move with the rotation of the camera, only with the player movement.
All in all, awesome experience so far, and definitely deserves a follow.
Btw, weird question, but are the trains inspired by Sonic Adventure DX? (just wondering)