The logs revealed that and Eggman Nega had formed an unholy alliance to use the KS device to stabilize their crumbling empires. The High-Seas Chase

As the ground shook and the dimensions began to blur—shifting between Sonic’s vibrant world and Blaze’s regal kingdom—the heroes realized they couldn't just fight with speed. They needed to harmonize their energies.

Sonic and Blaze took to the Wave Cyclone and the Ocean Tornado , tearing through the Coral Cave and Haunted Ship zones. Along the way, they met , whose "expertise" in sailing led them straight into a trap set by the robotic pirate Captain Whisker .

"Until the next storm, Sonic," Blaze whispered as she faded back into her own world.

The battle was fierce. Sonic used his to perform blistering grinds across the pirate ship’s rigging, while Blaze unleashed torrents of flame to melt Whisker’s defensive plating. With a final, synchronized Dual Burst , they shattered Whisker’s mechanical frame, recovering the first piece of the KS unit. The Final Showdown: Deep Core

With the KS device destroyed, the dimensional rift began to close. Sonic and Blaze shared a brief, silent nod of respect on the shores of Southern Island.