Instead, there really is no open city environment, and when you are swinging around out and about, it's done in a much more mundane fashion, with an invisible roof above your head like in the first Spider-Man. Problem is that in Spider-Man 2 PSP, that entire free-roaming element is taken out. It borrowed a lot from the Grand Theft Auto 3 series since Spider-Man could swing around the city at will, and a lot of fun was derived from just zipping around the city as fast as a spider can.
The one thing that made the console version of Spider-Man 2 noteworthy was the open-ended experience. The results, as you'd expect, aren't all that spectacular. Spider-man 2 on the PSP isn't a straight up port of its big brother counterparts on the consoles rather, it takes some of the worst elements from both titles and mashes them both into one mess.