Literally joined this gamejam half way through and submitted a last build at about 2 minutes before the deadline D: (My heart was racing!)
Already I've noted some bugs I've missed.
The 1 step hop might 'glitch out' if you backtrack instantly, you just need to be clever and approach at the correct side (I should have put an conditional check of some sort)
Also when climbing down a wall, it might look like you can't go to the next screen when reaching the map edge... that's my fault for forgetting about what is displayed on the screen in each segment! As there is no grippable area on the area below that spot you're on, You'll just need to shimmy along to the left of right and try to go up/down from that spot instead. (But how were you meant to know that? you can't see the next area!)