Plot: PQ2: Practical Intelligence Quotient 2 is a puzzle game for the PlayStation Portable, and a sequel to PQ: Practical Intelligence Quotient. The game is based on testing the model of human intelligence developed by Dr. Masuo Koyasu at Kyoto University. Wikipedia
Plot: Bliss Island is a puzzle video game developed by PomPom Games and published by Codemasters for PC and PlayStation Portable. The title was released on Xbox Live Arcade on March 12, 2008. Wikipedia
Plot: Puzzle Guzzle is a video game for the PlayStation Portable. This game is based on puzzles and you get assigned an avatar which can be customized during the game Wikipedia
Plot: Lumines: Puzzle Fusion is a 2004 puzzle game developed by Q Entertainment. It was published for PlayStation Portable by Bandai in Japan and internationally by Ubisoft. Players rotate and drop blocks containing random tiles of two colors so they make filled rectangular shapes of the same color on the...
Plot: Buzz!: Brain Bender, developed by Curve Studios for the PlayStation Portable, is the second game in the Buzz! series to be made for a hand-held console. Unlike other games in the Buzz! series Brain Bender is a puzzle game rather than a quiz game. Wikipedia