In the beginning prior to Super Mario Bros. Z, Mecha Sonic was born Metal Sonic, as told in episode 4. He was created by Dr. Eggman, after his attempts of destroying Sonic by using robotic models of Sonic failed indistinctly. Sonic fought him countless times, and was defeated. Metal Sonic would return a lot more stronger after each defeat. One night at the Death Egg, things took a turn for the worst, Metal Sonic fused with the previous robot Sonic models and became Turbo Mecha Sonic. More facts are known in future episodes. Alvin has confirmed that he will collect all of the Chaos Emeralds.