I like the dialogue, and I actually found myself enjoying the boss fight.
tomo ge is on the nose with his comments, the levels could be condensed and it'd help if the boss' actions had visual cues.
I did find a jump bug (I don't think it's intentional?) which I recorded that I'll DM to you on twitter since I don't know how to link videos here. Never mind I can't DM you. If you jump in the same spot under a ledge, although it seems like you need to do a big jump you can make it some times.
Overall, the game is a little easy but if your target audience is casuals then \_(ツ)_/¯