i feel like ive seen this before so maybe its already known lol
turnip only bounces in these places if smash thrown
https://www.youtube.com/watch?v=qRYKmEqejx0
on right side of fire transformation
I do not know exact spots where it starts working or stops working, but it works here
and here
and does not work here
also works on left side of transformation
https://www.youtube.com/watch?v=ETIMtb4ihqI
as with the right side, I'm not sure exactly where it starts or stops working but it works at this point
may work on other transformations but i have not looked into it yet
also it doesnt have a hitbox so probably doesnt have any practical uses lol