The first thing that struck me about Frozen Codebase’s new WiiWare title, Jam City Rollergirls, is that they crammed a lot into the restrictive file size of the Wii Shop Channel. For a game that combines Mario Kart [racing and power up items], Tony Hawk [skating and tricks], and roller derby action, they also managed to implement a rudimentary character generator for customization. Sure, it&...