MNR: New Mystery Mods Revealed; and Sackboy! | PS3Blog.net
It was rather obvious Sackboy would make an appearance in ModNation Racers (with his Cardboard Roadster). Along with that announcement, the ‘bonus mods’ have been revealed as well (which come with one of the previously announced pre-order characters), including Mouse Trap, Lil Tinker, Cowboy and Woody (pics after the jump).
In order to get Sackboy, a voucher will be made available inside select copies of the games, so I’d go ahead and say pretty much all of them :P. To know for sure, though, it’s labeled via a sticker (I uploaded a photo of that on the box art as well).