I still haven't gotten past Tower of Despair floor 6 and I think I should judge it when I've gotten past that bit. Though the first few bosses were pretty easy tbh, just a bit annoying.
Sky Scraper was kinda easy for me, but hey, that was my first playthrough. The Uncharted Galados Isle was a total nightmare that costed a ton of HP Bananas.
I got to the fake dark lord and queen fight and died. I used up all of my sprinkles. But I might give it a try again because I am better at playing the game.