The story of this glitch is there's 4 glitches in one! Depends how, and where you are on the spot.
I went to do a BGB on the pizza place in Main Street. If you stand inbetween the roof and the hand, and hold down Down and A at the edge, you'll get stuck. This is the LFG.
If you hold right down and A and bail. You'll fly over to the rail and bounce inside the rail
(this only worked once for me)
If you hold A, and then down you'll turn only at every 90 degrees angle.
This one's hard. If you hold A+Down+Y+and then bail. You'll bounce inside the store, and bounce up and float. (This happened to me 2/90 tries I did)
-If you got any problems doing this glitchpost, and comment^^
-found by THGM