KNEX's wild combos add up to great fun.

• Position: What's New?

Combining the characters from the phenomenally popular Nintendo Wii game with the phenomenally popular building set, K'NEX was inspired by Mario Kart Wii to bring these favorites to life, allowing young fans to build tracks, karts, and bikes, and then use them for actual races.

With the Mario & Yoshi vs. Stone Bowser Building Set ($89.99), youngsters will help Mario and Yoshi dodge huge fireballs as they race past the Giant Stone Bowser from Bowser's Castle Track. The set includes Mario in his Wild Wing Kart and Yoshi in his Standard Kart with super-fast battery-powered motors; Giant Stone Bowser with slamming, fireball-shooting action; three collectible items--Bullet Bill, a Star, and a Green Shell--and 30 pieces of buildable track that create a closed loop. This set can be combined with others from the series to make even bigger tracks.

With the Mario vs. Thwomps Building Set ($29.99), kids can build Mario in his Wild Wing Kart and race past the Thwomps. The set includes the parts to build Mario, a Wild Wing Kart with motor, a moving Thwomp obstacle, and two collectible items: a Green Turtle Shell and a Banana Peel. The set also includes six pieces of buildable, interconnectable track, which can be combined with other tracks.

The Mario vs. Goombas Building Set ($29.99) lets players build Mario in his Standard Kart and race past the Goombas from the Mario Circuit Track. The set includes the parts to build Mario, a Standard Kart with motor, a moving Goomba obstacle, and two collectible items from the game: a Mushroom and a Star. It also contains six pieces of track to be combined with other sets from the Mario Kart Wii Series.

Racers can build even bigger track layouts with the Track Expansion...