Nintendo’s mushroom eating plumber takes the top mod spot in Sony’s play-create-share racing game.

Amazon added more titles to their video game cash back promotion. Nier and ModNation Racers are on the list now.

The PlayStation Blog is brimming with PSP announcements today. First, they confirmed ModNation Racers for PSP, which we mentioned back in July.

Uncharted 2: Among Thieves, MAG, and most recently for Europe ModNation Racers had public beta trials. Apparently, Sony has a lot more of those planned for this year.

ModNation Racers, a racing game with LittleBigPlanet’s “play, create, share” tag line, was unveiled at E3 for the PlayStation 3. A PSP version of the user generated kart game might be in development as well.