I own a white PSP Slim. And this weekend, we're going on a trip to the beautiful mountains of Hakone, Japan. (I'm in Tokyo)

The journey itself from here to there will take 4 hours, so I certainly will bring all the entertainment (and snacks) I can get.

Now I'm wondering what games should I get for my PSP, suitable for long journeys like this? RPGs are too long and quite inappropriate, puzzle games seems to be the best. But I'm not sure which ones.


Please recommend me some titles, may it be action, puzzle, adventure, or just plain craziness. (WTF seems nice)