The best part about BIS is the gameplay mechanics, and all the little tricks that come with the battles. I especially enjoyed Bowser's giant battles, and even the worse music in the game was still fitting, and perfect to create a certain mood. I loved how each battle was unique and had something that made it special, and parts like the pipe fountain and the Midbus breath were my favorite. The characters and backgrounds inside Bowser were so weird and trippy that it was hard to ignore them, and overall it has everything that makes a good game.