I walked through Playstation’s booth and stopped to try out Mod Nation Racers for the PS3.

Mod Nation is a fully customizable racing game that allows you to create tracks and characters. You can even download pre-existing characters like the Green Ranger from Power Rangers or Mickey Mouse. I actually played as Batman and my car was the mystery mobile.

Even though the Sony press conference was one of the last press conferences to be held it did its job of hyping up the PlayStation brand very well. Sony spent the first half of the press conference talking about the PS2 and PSP with a sprinkling of PS3 news here and there. However the latter half of the presentation was ripe with the future of the PS3 and we summed up the best parts.

Mod Nation Racers amazed me. When United Front Games’ William Ho and James Greeve stepped up on stage to demonstrate how the PS3 game Mod Nation Racers worked during Sony’s E3 2009 press conference, it was easily one of the most surprising moments of that press conference. Especially the part where Greeve created an entirely new racetrack in five minutes. It’s a PS3 exclusive, and won’t be out until 2010.

Mod Nation Racers is to cart racing games what Little Big Planet is to platformers. Players completely customize their characters, carts and tracks. They can share the tracks, carts and character with others over the internet. They can even take tracks from other people that they’ve downloaded and tweak them on the go. Best of all, it’s an amazing simple, totally uncomplicated process.

Just watch the trailer below, which shows the creation of a new racing track in Mod Nation Racers…