Sonic the Hedgehog 4: Episode Kai is a spin-off installment for the Sonic the Hedgehog 4 series . The features in this game are from different franchises. The name is from Dragon Ball Z Kai, the stages are from Sonic 4: Ep I & II and Sonic Adventure, the characters are from Sonic Generations & Sonic Lost World, the bosses, allies & enemies are from the Classic games, the story is based on Sonic Lost World and the menus are based on Sonic Riders: Zero Gravity and Sonic Adventure 2. However, the sub-boss of Space Planet Zone/Planet Egg Zone has similarities to ambushes from the Super Smash Bros series.


HUB Stage Name (Sonic & Blaze) No.# HUB Stage Name (Shadow & Amy) No.#
Kai Ruins Ancient Forest Zone 1 Egg Carrier Island Sky Fortress Zone 1
Kai Holoska Amusement Winter Zone 2 Kai Ruins Underwater Ruins Zone 2
Kai Desert Industrial Desert Zone 3 Kai Holoska Underwater Park Zone 3
Egg Carrier Island Sky Airship Zone 4 Kai Desert Oil Rig Zone 4
Little Planet Space Planet Zone 5 Little Planet Planet Egg Zone 5
Central City Central City Zone/Final Boss: Final Solaris Eater 6 Central City Central City Zone/Final Boss: Final Solaris Eater 6

Bosses and RivalsEdit

  • Rival Match (Sonic/Blaze/Shadow/Amy) - Shadow/Amy/Sonic/Blaze
  • Boss Battle: Egg Mobile Serpentleaf Ball - Blaze/Shadow
  • Boss Battle: Catcher Metal - Sonic/Amy
  • Boss Battle: Scrap Mech Eggmobile - Blaze/Shadow
  • Boss Battle: Eggman Carrier - Sonic/Amy
  • Boss Battle: Metal Rush - Blaze/Amy
  • Boss Battle: Death Egg Heart - Sonic/Shadow
  • Final Boss Battle: Final Solaris Eater - Hyper Shadic


Final StoryEdit

Continuing from Sonic & Blaze's story, Sonic and Blaze rest on the couch at Tails's home while Tails and Marine clean up the living room, making the room spotless. When Marine turns on the TV, Omochao, the news reporter, reveals that Solaris and the Time Eater have risen and joined bodies with Biolizard on the Space Colony ARK to transform into Final Solaris Eater. Sonic, Tails, Blaze and Marine then race off to Central City, where they will meet Shadow, Amy, Knuckles and Rouge.

More coming soon...

Voice ActorsEdit

This is the last game in the series to feature the Studiopolis voice actors. However, Sonic, Tails, Blaze, Marine, Shadow, Amy, Knuckles, Rouge, Orbot, Cubot and Dr. Eggman's voice actors will reprise their roles in future games. Also, this is the first game since Sonic & SEGA All-Stars Racing and Sonic Advance 3 to feature Jason Griffith and Ryan Drummond in a game and Kirk Thornton has confirmed that he will no longer be voicing Orbot.

Role English Voice Actor Japanese Voice Actor
Sonic/Metal Sonic Roger Craig Smith Junichi Kanemaru
Blaze Laura Bailey Nao Takamori
Shadow Kirk Thornton Koji Yusa
Amy Cindy Robinson Taeko Kawata
Tails Colleen Villard Ryo Hirohashi
Marine Ikue Otani
Knuckles Travis Willingham Nobutoshi Kanna
Rouge Karen Strassman Rumi Ochiai
Orbot Ryan Drummond Mitsuo Iwata
Cubot Wally Wingert Wataru Takagi
Dr. Eggman Mike Pollock Chikao Otsuka
Hyper Shadic Jason Griffith Junichi Kanemaru/Koji Yusa

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