Real talk - The closest thing to a glitch in this game is the checkpoint manipulation on Crawler-Monster, Runner-Highroad, and Runner-Fire Escape.  Other than that it's learn the track color signals, and Do The Twist (TM).

That said, I'm leaving this playlist of ILs here.  I highly recommend watching the newest best full run or just skipping to the appropriate track though.

https://www.youtube.com/playlist?list=PLBWX5b2ZflungKh-aPva3ARZboOmURvBG

- Cab June 2017

mrcab55

Uniracers

Crawler - Zoom Zoo

Hopper - East

Bounder - Jumpover

Super Nintendo

Segastar

FlyHec

USA / NTSC

Dragster 24.47

Pay attention to decimal places with submitted runs

PB Ruining Glitch

Important Speed Tech

karmamachine

ReMeDee