I found 1 more kinda funny glitch with the lava.
I was on Gunpowder Cave - 2 and I was honestly wondering if it would give me a ton of speed if i were too shoot the second I touched some lava, right? NOPE instead it canceled all of the lava speed. So I only got the speed and height from the shot, and it counted as the first touching lava time so I ended up dying pretty quickly!
This one made me laugh at myself for good bit and from my short testing it's probably possible at any lava pool.
I'm still giggling at myself for thinking I'd find some crazy trick but instead I ended up dead