The Sonic the Hedgehog franchise has a large ... Topaz has had a key role in many such events, from infiltrating Eggman’s base to spying on the doctor's plans and helping secure the Chaos ...

Eventually, after Sonic and his friends realize they are no match for the new and mysterious hedgehog, they call a temporary truce with Eggman. Together, they explore an abandoned G.U.N. base ...

Another still shows Metal Sonic standing next to Emperor Eggman – could this be explored in Sonic 4? It's certainly possible, and follows the recent trend of Sonic movies being inspired by its ...