VGChartz's William D'Angello: "Today we take a look at the top 10 best-selling games for yet another platform. Up to this point we have looked at the original PlayStation, the Nintendo 64, the PlayStation 2, the original Xbox, the GameCube, and the Nintendo DS. This week we are taking a look at Sony's first handheld, the PSP.
The PSP is the ninth best-selling video game platform in history and the fourth best-selling handheld in gaming history. It is also the best-selling handheld not released by Nintendo. It sold 80.82 million units in its lifetime."