Sonic Boom Metal/ shadow New Screen Shot

I found a video showing some new screenshots for Sonic Boom characters Metal sonic and Shadow. So far the belief is that Metal is for rise of lyric which is the Wii U exclusive while shattered crystal for 3DS gets shadow. Both of these character have been Sonic rival one way or another. So far we have seen them teas us at the end of the latest trailers for the game. Now it seems we get some more.