Well it wasn't battle per se, but rather the puzzles right before them. The fights felt good especially the final boss, I had to figure out which attacks dealt how much damage, to time my heals right.
I thought frostbite was Zuzu at first, but when I figured out I need to get to the ice block, I thought I was doing something wrong/cheesing it unintentionally since I was getting hit every time.
And the fire/mom puzzle, since I was hitting enter I skipped the first dialogue after I started pushing so I thought I needed to do something else, like hit the guy in the middle of the lap, over the lava with the freezy power. Both of these problems are very much obvious and my own fault in hindsight lol
Also was the teddy option (the one that cost 50?? 20???) A block? I don't think figured it out, it didn't have a description, or I missed it.
Oh yeah one more thing. There should be an end screen instead of a game over. I got confused so I re did the final boss to make sure it wasn't a bug. I liked the game a lot btw! Hopefully my comment somehow helps? Keep up the wonderful work!!