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For the final boss that plays the "Final Fever" music track, see .
Metallic Madness boss
Final Fever was the cut true final round of the 2011 remastered version of that was only able to be accessed if the player had all of the Sonic the Hedgehog CD Time Stones. It is named after the music track that normally plays during the Metallic Madness boss.
According to the director of the 2011 re-release of
Sonic the Hedgehog CD, Christian Whitehead, it would have taken place in a distorted time warp and the boss was planned to be virtually invincible in its current form. The only way to defeat it would be to warp speed to "wind back the clock" and destroy parts of it when it was more vulnerable (possibly being built). It was planned to use the "Final Fever" music track, with the previous boss using the standard boss theme if this round is next. Interestingly, it bears an "R-9" mark - a reference both to Robotnik and it being the long awaited ninth Round (should R2 be completed).
Sonic | Tails* | Amy | Dr. Eggman | Metal Sonic | Animals ( Flicky, Pocky, Ricky, Pecky, Sheep, Swallow)
Rounds Palmtree Panic | Collision Chaos | Tidal Tempest | Quartz Quadrant | Wacky Workbench | Stardust Speedway | Metallic Madness | Special Stage | Bonus Stage | R2 | Desert Dazzle*
Amenbo | Antlion | Bigbom | Dango | Ga | Hotaru | Kabasira | Kanabun | Kemusi | Kumo-Kumo | Minomusi | Needlenose | Noro-Noro | Robot Ant | Robot Bee | Robot Beetle | Robot Butterfly | Robot Mantis | Sasori | Scarab | Semi | Taga-Taga | Tamabboh | Tentou | Tonbo | Yago
EGG-HVC-001 | Collision Chaos Boss | Tidal Tempest Boss | Quartz Quadrant Boss | Wacky Workbench Boss | Metal Sonic | Metallic Madness boss | Final Fever*
Techniques Playable characters
Propeller Flying* | Spin Jump | Super Spin Attack | Super Spin Dash | Super Peel Out
Ring Spark Field | V. Maximum Overdrive Attack
Gimmicks and obstacles
Breakaway Bumper | Bumper | Chopper Block | Conveyor Belt | Crusher | Dash Zone | Electric Generator | Electrical conduit | Emerald Block | Fan Block | Flipper | Flywheel | Goal Plate | High-speed warp tube | Iron ball | Rotating platform | Seesaw | Size Beam | Snowblower | Spring | Spring Pole | Switch | Time Warp Plate
Air Bubble | Capsule | Lamppost | Little Planet flowers | Metal Sonic Projector | Monitor ( Extra Life, Invincibility, Power Sneakers, Super Ring, Shield, Time Bonus) | Ring | Robot transporter | Time Stone | UFO
Cosmic Eternity - Believe in Yourself | Sonic - You Can Do Anything | Sonic Boom
Sonic the Hedgehog Boom | Sonic the Hedgehog CD Original Soundtrack 20th Anniversary Edition |
Sonic CD (vinyl album)
Debug Mode | Freeze | Little Planet | Never Lake | Shuttle loop | Time Attack | Winding Tunnel
*Only included in the