Hot Pixel review at PSP World.

"Like the current obsession to turn almost every 'serious' title into a brain workout of some description there's also been something of a rush to produce a 'best selling' selection of mini-games. First seen of Nintendo's GBA the idea that a quick firing selection of 5 second games could be fun was soon embraced by other developers and here, at long last, the concept has made it's way to the PSP. Warioware, was an original and there's no denying that Nintendo are masters at this sort of thing but that not to say that the Sony crowd isn't ready to be tested. So... on your marks, get set, go...."

Full Source: PSP World