Hot Pixel review at Gamespot.

"Hot Pixel is an attempt from Atari and French developer zSlide to make their own WarioWare game. While we'll stop just short of calling Hot Pixel a rip-off of Nintendo's fast-paced, funny minigame extravaganza, it's very obvious that the developers must have sat down and thought, "How can we make this concept our own?" In the end, though, none of that really matters, because this is a PSP game, and there's nothing quite like this (or WarioWare) on the PSP. So, sure, it's utterly shameless in spots, but this collection of crazy-looking, superstylized minigames still manages to get by on its own merits."

Full Source: Gamespot