This is the pre-order (or possibly bonus pack) for Sonic Generations in Spain. Europe is supposed to get a pack of some sort (different from this) so it's unknown why Spain alone is doing it's own different bonus. The shirt has both eras of Sonic on it, with the logo. The white text at the bottom of the box says "T-Shirt Cartridge" --indicating they plan to have a plain one too. This is a fun bonus if you live in Spain and somehow can't get the European pack.