Sanuk has a nice line in PSP minis with Pix 'N Love Rush, Twin Blades and 3D Twist & Match on the store. Next up from the French publisher is Drums Challenge, a quite literal button basher as you tap away in rhythm to the various musical styles.
Master the rounds, go for a perfect score, and imagine you are one of the world's greatest drummers. All for less than the price of a pint! Originally an iOS game from a Brazilian developer, this should get your samba feet tapping!