Yeah, best comic book game ever as far as gameplay and extra content is concerned. The battle with Misterio and the final stage with Doctor Carnapus are great.
You're kidding, right? The PS2 game does a fantastic job of bringing the comic to life...certainly much more so than the fighting game did. JoJo's on the PSX > JoJo's CPS3, BTW. It's all about Super Story Mode.