Commence the unstoppable automotive puns: It’s a running joke around here that when a franchise does a kart racer, it’s either doomed, running out of steam or jumping the shark somewhat hard creatively. However, given that it’s a LittleBigPlanet spin-off (or spin-out if things go badly for the game), this one might be worth taking for a ride. Of course, Sony already has an excellent kart racer in the ModNation Racers series, but let’s see how LBP turns out before passing any judgement. If what’s under the hood is fast and fun, this one will be firing on all cylinders in play stacks for quite some time. Of course, some creative wags will no doubt create a bunch of Mario Kart clone tracks, which should be really funny because you KNOW someone at Nintendo will be playing them once they’re posted on PSN…