Some time ago, a cancelled arcade puzzle game featuring Sonic the Hedgehog was revealed, “SegaSonic Bros”. The goal was to assemble differents colored Sonics (blue, red, yellow and, after a while, white) around others to make them all disapear. Here’s a gameplay video: https://www.youtube.com/watch?v=P45fTH7m8L8

As you may also know, a cartoon serie called “Sonic underground” was released at the end of the 90's. This show was featuring Sonic and his brother and sister, Manic and Sonia.

So, of course, I had to make a crossover ! :D