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| Series | Adventures of Sonic the Hedgehog (“AoStH”), first-run syndication |
| Episode | Episode 50 of 65 in production order (code 238-150) · aired 39th · WildBrain no. 150 |
| First aired (US) | 28 October 1993 · syndication |
| Written by | Jeffrey Scott |
| Directed by | Kent Butterworth |
| Sonic Says | Skateboard safety |
| Previous | Hedgehog of the “Hound” Table |
| Next | Prehistoric Sonic |
Chaos Emerald saga, part 3Ancient MobigyptSonic’s ancestors
Robotnik’s Pyramid Scheme is episode 50 of Adventures of Sonic the Hedgehog in production order (production code 238-150), the order used by the DVDs, WildBrain’s official uploads and our episode guide. It was the 39th episode to air in the 1993 syndicated run, on 28 October 1993. It was written by Jeffrey Scott and directed by Kent Butterworth.
Synopsis
Fleeing a lion in a Roman arena – where Caesar turns out to be Robotnik’s ancestor, Julius Robotnikus, who gives them a thumbs-down – Robotnik and his robots escape to Ancient Mobigypt.
On the beach, Professor Caninestein warns Sonic that Robotnik is meddling with his family tree, and sends him back with a new invention, the Time Warp Boogie Board. Robotnik has declared himself pharaoh and plans to stop Sonic’s ancestor Masonic from ever meeting Penelope, so that Sonic will never be born.
Sonic makes sure the couple meet, races Robotnik by chariot, and then dives into the crypt of the doctor’s mummified ancestor for the Emerald of Immortality, before packing Robotnik off through time once again.
Key Moments
- Julius Robotnikus gives his descendant the thumbs-down.
- The Time Warp Boogie Board.
- Sonic plays matchmaker for his own ancestors.
Sonic Says
Sonic explains how to ride a skateboard safely.
Every episode’s segment is listed on the series page.
Trivia
- Part three of the Chaos Emerald saga, aired 28 October 1993.
- Jeffrey Scott also wrote Robolympics, Magnificent Sonic, Black Bot the Pirate, Hedgehog of the “Hound” Table, Prehistoric Sonic, Baby-Sitter Jitters, Honey, I Shrunk the Hedgehog, Robotnikland, The Mobius 5000, The Little Merhog and Road Hog.
Watch the Episode
The full episode, from WildBrain’s official WildBrain Hero Tower channel on YouTube (checked 6 November 2026).
Part of our Adventures of Sonic the Hedgehog episode guide. See the series page for the show’s history, cast, Sonic Says and home video.
Sources: production code, air date and writer from Sonic Wiki Zone’s episode list (codes from the US Copyright Office record), Wikipedia and Sonic Retro (Wayback copy), cross-checked against Luke’s 2017 list and the on-screen title card; synopsis written for Sonic Scene from the episode and these summaries; title card via Sonic Retro and screenshots via Sonic Wiki Zone, copied to our media library.