All I can say is damn, the power of Kratos in the palm of your hand; too good to be true.
Although the game itself is generally short once you facture in the quality of graphics, the combat system, and the games overall perfection; you can't argue with its length even if it is just for 7 hours (basically a 1st run)
Note: My second run through the game only took my about 2 1/2 hours (with McKratos who has the skill of having higher attack power), but then again I'm already playing it for a third time and my enjoyment of the game hasn't changed.
A must buy for any PSP owner. You won't be disappointed because lets be honest, who wouldn't love to kick some ass as Kratos the God of War wherever they went.