Ep. 31: Sonic infiltrates Eggman's base while Gamma battles Beta to free animals
Aired on November 2, 2003

31
Sonic locates and breaches Dr. Eggman's subterranean facility known as Final Egg. Concurrently, the robot Gamma travels to multiple locations to liberate animals from the control of other robots. This mission brings him into conflict with E-101, also known as Beta. The two robots engage in a tense confrontation. The narrative follows Sonic's stealthy entry into the enemy stronghold while Gamma faces off against his fellow creation during his rescue efforts. The episode highlights the parallel actions of the hero and the rogue robot as they pursue their respective goals against the forces of Dr. Eggman.
Episodes
- Ep. 27 · Eggman returns with Chaos and new E-100 series robots after a brief period of peace.
- Ep. 28 · Sonic's Air Battle Ends in Crash After Chaos Fight
- Ep. 29 · Chris and Big locate Froggy, but E-102 captures him, leading to an Egg Carrier infiltration.
- Ep. 30 · Sonic and Tails confront E-102 on Egg Carrier while Amy intervenes
- Ep. 31 · Sonic infiltrates Eggman's base while Gamma battles Beta to free animals
- Ep. 32 · Chaos survives, evolves into Perfect Chaos, and Sonic's body shines revealing the truth
- Ep. 33 · Eggman infiltrates Prison Island to access Project Shadow after discovering Gerald Robotnik's connection.
- Ep. 34 · Sonic is arrested by GUN for Project Shadow theft and escapes Prison Island chase
- Ep. 35 · Sonic is imprisoned while allies and Eggman race to Prison Island for the Chaos Emeralds.