Sonic Underground

Sonic Underground is an animated series that follows the adventures of Sonic the Hedgehog and his siblings, Sonia and Manic. The cartoon follows a main plot separate from all other Sonic the Hedgehog media and was produced by DIC Entertainment and TF1. It first premiered in France on 6 January 1999 on TF1, and then premiered in the United Kingdom on 2 May 1999 on ITV1 and finally in the United States in syndication on 30 August 1999. The series ran only for one season, consisting of forty episodes.

Bug! (Season 1, Episode 14)
A faction of the Freedom Fighters is wiped out by a swarm of metallic fly-bots. When Manic goes in search of the insects, he is stung with serum, making him loyal to Robotnik. Sonia finds Manic communicating a radio message to Robotnik and realizes her brother is under a spell. It is up to Sonic to exterminate the metallic pests.

Haircraft in Space (Season 1, Episode 32)
Doo Bot a salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes she reveals the location of their new base, she also hypnotize Manic and Sonic into revealing some information's about themselves, after the rebels helped her escape from Dingo and Sleet Doo Bot decided to hypnotize them alongside Robotnik into frogetting all the intel that they collected.