Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good PSP Platformer

This game is the platformer by which other PSP platformers should be judged. I believe that handheld games should be easy to pick up for a few minutes and then put down. It seems like so many PSP games are simply PS2 games for the small screen, but I generally don't play my PSP for hours at a time. Anyway, the game is generally fun and intuitive but some portions seem based more on memorization than they should be.