Practical IQ
This is the follow up to PQ, however has had a big overhaul offering a better gaming experience and graphics. It also uses the online capabilities of the PSP allowing the user to post their score/rank online for all to see. This really does allow you to see how clever you are compared to the rest of the world.
The basis of the game is to complete a range of puzzle levels in the fastest time possible. This involves opening doors, moving boxes and blocking lasers. So, the faster you are the better your score and the cleverer you are.