[quote name='wtsutton']I bought this and the Resistance dual pack for 20 bucks each on Amazon a couple of weeks ago. I've only played Chains of Olympus so far. Awesome game but, be warned, it was over in five hours. And I'm not one to speed through games so keep that in mind.[/QUOTE]
Both psp games are a lot shorter than the console games in the series. It probably originally had to do with fitting each game on a UMD without sacrificing quality/production values. They're both pretty amazing games, though, and I didn't really feel shorted by the length (haha...unintentional pun).