Look at this great bonus set! If you bought the Sonic Classic Collection for the Nintendo DS in Australia, you could get this whole set of extras as a free bonus with the game. It comes in a 'limited edition tin' (metal box) with 5 collectible 'art cards' and a mini Sonic figurine. The figure is solid plastic and features classic running Sonic on a little base. It looks A LOT like the First4Figures one, only it is much smaller. Could they have shared their sculpt? It's also been thought to come with a ring of some type. 

Interestingly, the tin itself is quite modern-themed, with jumping twist Sonic in a gold ring & other CG gold rings flying out of the blue checkered background. It's a nice pre-order(?) bonus item, or just collectible version of the game that comes with enough cool stuff to incentivize.