oh I forgot to include this, press down to drop from climbing
Ah that would've saved me some health. I knew you could do it once you'd grabbed onto something, but didn't realize you could do it after committing to a climb.
Also, seperate thing but if you backtrack through the tutorial area and go up the cliff to the left of where you first drop down (where the Z to jump text is) you get trapped in a null area with nothing in it.