So, I was messing around in the shop area before a run and figured out a way to gain height by canceling the animation of the Ranger's air attack with Spin Kick. Not sure if this is useful in any way or if this could be applied to other classes similarly for other benefits but I immediately thought if anyone could make it in to something it'd be the speedrunning community. I recorded myself doing it (poorly) to show how and to show it gaining height.

There are many ways to get infinite height. This is one of them. Another one is by using Astromancer. Spam attack in the air and eventually it will lift you up as hig as you want

The value of gaining infinite height with the ranger is that it can be unlocked immediately, since if you retire your first hero, you're still given 200 gold. While there is currently no run that can take advantage of infinite height, we are still in the infancy of our game, and I'm certain more runs will come into existence.