one of the weirder classic sonic games, the level design are kinda wack, to get the true ending you have to do a ton of exploring and while i don't mind it, i think going to the past and then exploring is kinda tedious, going to past/future is cool on it's own tho and even changes ost. the ost in this game is really good, both Japanese and USA ver sound great, i prefer Japanese ost but usa one does go hard. overal, weird game but fun