Poor Gerald, how's a Dolphin supposed to making a living?
This was fun. I particularly liked that there was a parry window upgrade as my timing in fighting games isn't amazing. I found that using that and the parry-heal upgrade worked well.
When I broke the seal I couldn't see it: I just got the prompt to do it. Also a nice to have would be to have the movement logic so that you could slide along the wall instead of getting stuck on it.
Good work! I enjoyed my time with this.