Ivo Robotnik

Biography
Ivo Robotnik is the chancellor of Rusk under the pseudonym Boor Irk Vino. For unknown reasons, he killed Sonic's parents and burned his house when he (Sonic) was 8.

He returned with WMDs possibly to kill Sonic. When his bomber jet fell down, he tried shooting Sonic, but failed. His face was burned by Sonic's bare hands making him scream so loud, it could be heard on Westwide Island and Angel Island. He used backup power to repair his jet and left hints he was going to the Westwide.