Air date: April 15th, 2005 (FR); April 15th, 2006 (US)
Tropes:
- Big "NO!": Amy screams this in the English dub when Dark Oak swallows Sonic and sends him into the waters of Planet Aquirius.
- Darkest Hour: Final Mova delivers some minor but very threatening damage to the Blue Typhoon with its flames threatening the Master Emerald, Amy's starship is destroyed, and Sonic is eaten up by its Dark Oak head and plunged into Planet Aquirius' waters where he'll be unable to swim as pointed out by Dark Oak, who also mentions that he and the other Metarex draw their strength from water.
- Enemy Mine: Sonic, Eggman, and even the Chaotix team up for the final battle against the Metarex.
- Fusion Dance: With the seven Chaos Emeralds and the Planet Egg, Dark Oak, Black Narcissus, and Pale Bayleaf become Final Mova.
- Nothing Can Stop Us Now!: In the English dub, Dark Oak ends the episode taunting Sonic over his weakness to water and gloats that now there will be nothing to stop his plans to transform the universe.
- Save the Villain: Chris releases Eggman from his prison on Dark Oak's mothership.
- We Can Rule Together: Dark Oak offers Sonic to join him which the hedgehog flat-out refuses.
