Here's the first look at Tomy's build-able Sonic Boom character figures. As you remember, Tomy had 'buildable' figures for modern Sonic previously, they came blind-boxed in blue spheres from a cardboard dispenser in stores. They were a semi-hard rubber/plastic. These are no doubt more of the same, but with green hexagon bases. The bottom right shows how many parts will likely be in each figure. You can collect Tails, Sticks, Knuckles, Amy, Eggman & 1 Sonic.

In the gallary you can see Tomy's Buildable Knuckles all assembled, so you can compare it to their regular 3 inch size figure. As you can see, he's pre posed to the 'fist catch' kind of CG stock pose, and he has the facial expression from it too. (So he looks a little livelier than the standard figure) The bandages are nicely sculpted, but he's missing his power band bracelet thing. The metal plates for his shoes are also blue instead of gray.
In all, for a blindbag mini buildable figure (it comes as arms, body & head with base) it looks pretty nice. With 6 figures on the set, these should be pretty collectible.