I agree with that. There was also 4 dungeons (towers) in 4 Heroes of Light and each one had 100 floors, and I've only made it through one! Gah its irritating but worth going through...I guess. I'd also say V had a pretty deep dungeon, that bonus dungeon at the end of the game. I'm only 40% through the dungeon so far, but it requires a lot of work.