Booger

Booger The Two-Faced Hedgehog is a gangster, who is the enemy of Meta Knight, Sonic Jr., Amy Daisy Rose, and Cream Jr. Flipping the coin dictates Booger when making any significant life decisions. If the coin lands on the scarred side, Booger will pursue acts of evil. If the coin lands on the unmarked side, he is compelled to commit acts of good. He is voiced by Richard Moll.

Origin
Marvin Carvey Danta was a district attorney of Los Angeles. When Meta Knight and Sonic Jr. captured Mammoth Mogul the Kingpin, a court case, “Mammoth Mogul the Kingpin vs. Marvin Carvey Danta,” began. What Marvin didn’t know is that Mogul bought a triflic and sulfuric acid and throws acid(s) at Marvin’s right face, causing extreme pain and unconsciousness, which causes Mogul to be sentenced to 1,000 years in prison. When he was in the hospital, his face was wrapped in bandages like a mummy, but when his bandages are removed, he is devastated because of what his right face looks like after looking at himself in the mirror. His right face is scarred, disfigured, and green, leading to the birth of an evil persona. He renamed himself as Booger, the Two-Faced Hedgehog as he suffers extreme anger, dementia, and a mental breakdown, which causes him to turn to a life of any evil crime.