Virtual Danger – Sonic Underground, Episode 40
Sonic and Manic get hooked on a virtual-reality game, and Robotnik traps them inside it.
Sonic Underground
Sonic Underground (DiC, 1999): the series, the episode guide and all 40 episode pages.
The Pendant – Sonic Underground, Episode 39
A magic pendant starts turning Sonia invisible, and her brothers race to find its other half.
The ART of Destruction – Sonic Underground, Episode 38
Robotnik’s thinking robot ART is built to destroy, until it hears the band play.
Bartleby the Prisoner – Sonic Underground, Episode 37
Bartleby is put on trial for treason, and he would rather be roboticized than let Sonia walk into a trap.
Sleepers – Sonic Underground, Episode 36
Robotnik’s sleep darts are capturing Freedom Fighters, including Cyrus’s father.
The Big Melt – Sonic Underground, Episode 35
Robotnik plans to melt the polar ice caps, and Sonia is mistaken for a penguin queen.
Sonia’s Choice – Sonic Underground, Episode 34
With her brothers in two Roboticizers at opposite ends of the city, Sonia can only save one.
Healer – Sonic Underground, Episode 33
A self-styled scientist claims he can reverse roboticization, and Sonia wants to believe him.
Haircraft in Space – Sonic Underground, Episode 32
A robot hairdresser hypnotises customers into giving away secrets, and Sonia reveals the location of the base.
Country Crisis – Sonic Underground, Episode 31
A feud between two groups of Freedom Fighters lets Robotnik build a dam that will flood the countryside.