Most complicated part of the game was when you drop directly into the acid pool and shoot the blocked bath to the left. I think this part is needlessly hard compared to the rest of the game because currently the acid does a lot of damage.
Now that i rething my original post it feels better if you can shoot upwards with the gun but not with the spells. That way you can shoot flying enemies and still use the gun without jumping while you can use the spells while jumping but not upwards.
P.S. Generaly i think blocked paths should be re-spawned every time you exit the room instead of staying blocked.