Here is my 100% Achievement guide including the speedrun achievement!
Few tips to make it go even faster.
Press B to skip cutscenes, Press and Spam A To smash through dialogue and one big tip is whenever you begin to go to a new area and you see the red arrow, double tap the A button to get there immediately instead of walking there, that saves so much more time!
Also, not sure if pausing the game stops the timer, so if you need to pause, back out completely to the xbox main menu and then quick resume :)
Hope this helps :)
Intro - 0:00
1. My Pilot Is Afraid Of Heights - 3:45
2. What A Lovely Bike That Was - 6:00
3. Im The Captain Now - 6:35
4. Cheese Freeze - 8:30
5. Wake Up Sheeple - 10:05
6. Hot Surprise - 19:25
7. 11 Kinds Of Herbs and Spices - 22:10
8. Those Wires Were Fast As Lightening - 26:15
9 & 10. We Obey The Rules Of Aerodynamics & Fan-Tastic! - 27:55
11. That Fit Wheel-y Good! - 28:30
12. Straighten Up - 33:15
13 & 14. Over The Edge & The Journey Down Fast Lane - 35:20