I'd say, rental.
You play as Fry, Bender, Leela and sometime Zoidberg, which makes any hardcore fan of Futurama happy, I'm not a hardcore fan of Futurama but I'd say Futurama for the PS2/or any other console, is worthless. Sure -- it's good at first but then it gets boring, crappy, and crappier as you go along, plus harder.
I'd say it's for rental purposes only, if you are going to get this game, don't say I didn't tell you how bad it is. 'Cause it is REALLY bad.
Players who don't have a clue that Futurama was a TV show are screwed.