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Not to be confused with Metal Madness or Metallic Madness Zone.

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Sonic the Hedgehog CD
Metallic Madness

Evil Dr. Robotnik has created a nightmare of pumping pistons, walls of spikes and blade-wielding badniks out to slice and dice you. It'll take all your speed and skill to get through this stage. But once you do, it's time for the final showdown! The future is up to you....

— Description, Sonic the Hedgehog CD US instruction manual.[1]

Metallic Madness (金属の狂気[2] Kinzoku no kyōki?) is the seventh and final Round in Sonic the Hedgehog CD. It consists of a factory system located on Little Planet. As with the other Rounds in the game, Metallic Madness consists of two Zones and a third, shorter Zone that features the Round's boss.



In the present, Metallic Madness is a green-tinted, factory owned by Dr. Robotnik. The floor has built-in turbines. In addition, some small plaques with Robotnik's face adorn the buildings. In Zone 1, the factory is full of green and red turbines. In Zone 2 on the other hand, Metallic Madness features gigantic machines that can be seen in the background.


In the past, Metallic Madness is under construction, though many of the machines and computers appear intact and functional with a lavender hue. Building girders are strewn about the ceilings and floors in many areas, construction cones can be seen on the ground and the metal shines with a soft, light purple hue. Many parts of the Round also appear either absent or unfinished, with many elements having been replaced with floating blocks in some places. In Zone 1, most of the local factory appears unfinished as well, revealing some hanging wires, a magenta sky with orange clouds, and many construction machines in the background. In Zone 2, Metallic Madness takes place fully outside, with the gigantic machines from the present having been replaced with more construction machines that can be spotted under a light blue sky with white clouds.

Bad future

In the bad future, Metallic Madness appears foreboding and in a state of great decay, as if it has been abandoned for years. The machinery and surrounding walls and flooring have a rusted brownish-green hue to them, with a pitch black background illuminated with multicolored mechanical pillars and countless computer consoles. Though functional, many of the surrounding mechanisms, if not the entire place itself, appears cracked, broken, and desperately holding on to whatever electrical power it can get, as if in danger of shutting down. Both Zones feature the same general layout as in the present, though with different color tones and broken-down machines.

Good future

In the good future, Metallic Madness has been turned into a botanic laboratory of some kind, with the metal walls and floors looking sleek and clean and with a bright blue hue. Mechanical plants and fountains adorn specific areas. Miles of forestry have sprung up all around it, as if Robotnik was never there. The plaques also no longer show Robotnik's face; instead, they have been replaced with oddly-looking symbols. The place looks almost like a sprightly, futuristic laboratory where Animals dance freely and victoriously amidst the corridors. Despite the lighter feel, though, many dangerous traps are still present. In Zone 1, the turbines have been replaced with machines that feature domes with big plants inside them. In Zones 2 and 3, the Round takes place entirely outdoor, revealing a clean, light blue sky with clouds, geometric and blue-purple buildings, and small laboratories covered in miles of vegetation.


Having invaded Little Planet, which includes Metallic Madness, Dr. Robotnik would set up base in Metallic Madness and install robot teleporters in the past in order to infest the region with Badniks. Thanks to this, Robotnik managed to conquer the future of the planet and rewrite history in his own image. As such, in the future, Metallic Madness and Robotnik's base would turn into a cold and rusty abandoned base, albeit with all of its machines working properly.

After Sonic the Hedgehog arrives in the region, he manages to re-write Metallic Madness's history and revert Robotnik's effects in the region. Unlike many other things Robotnik had done to the planet however, Metallic Madness is not removed from existence due to Sonic's meddling; instead, a remodel would take over the base, turning it into some kind of botanic laboratory. Traveling into the complex Sonic faces Robotnik in a final showdown. In the end, Sonic wins, thereby triggering a chain reaction that causes Robotnik's entire base to crumple, thus forcing Sonic to escape Little Planet with Amy Rose.


The floor in Metallic Madness has built-in turbines, so the playable character must watch out for death traps such as moving buzz-saws, cages with spinning bars, and spinning blades on wheels.

There are also Springs on moving wheels, which can make it tricky to reach higher places. Towards the end of Zone 2, Sonic gets shrunk down to 25% of his original size when passing through a laser, allowing him to fit into smaller passages and jump higher. At the end of the shrinking mini-maze, Sonic returns to his normal size.


Zone 1

Zone 2

Zone 3


Main article: Metallic Madness boss

The Metallic Madness boss.

In Zone 3, the player has to battle the Metallic Madness boss, which is basically Dr. Robotnik in a sphere-shaped vehicle with four blades. Robotnik will use these blades in a creative variety of attacks against the player, including bouncing them, throwing them against the playable character, or even extending them. However, most of these attacks will leave the vehicle vulnerable, where the player should attack using a Spin Attack against it. One hit will tear apart one blade, so four hits are enough to destroy the vehicle.


  • While Metallic Madness itself does not appear in the British Sonic the Comic comic series, the cyber-formed appearance of the Miracle Planet from "The Sonic Terminator" story arc (Sonic the Comic #24 to #28) was based on Metallic Madness, as revealed in the script for Sonic the Comic #26.[3] In particular, the concept of Sonic being shrunk in size to fit through a small hole is based on an obstacle from Zone 2 of this level. Writer Nigel Kitching provided a video reference of the level for artist Richard Elson to work on.
  • Metallic Madness' music had appeared several other times, being referenced or remixed.
  • In "Metallic Madness "B" mix" from the Japanese soundtrack, phrases like "Sonic, dead or alive, is m-m-mine," "You can't do anything, so don't even try it. Get some help," and "Don't do what Sonic does," can be heard in speech synthesis, which sounds like the "speech" synthesis program included in the OS for Amiga computers which were commonly used to develop Sega Mega Drive games.
    • "You can't do anything, so don't even try" is presumably a twisted version of the lyrics of "Sonic - You Can Do Anything", the theme song for the intro in the Japanese soundtrack of the game.
  • "Metallic Madness "P" mix" is a remix of the boss theme from the Sega Game Gear version of Sonic the Hedgehog 2. This music was also arranged for the final boss theme in Sonic Chaos, the Laser Walker.
  • Metallic Madness Zone 2's past is apparently almost but not impossible to complete, as a pathway later in the act seems barricaded to the actual/reachable exit. However, the start of Zone 2 is topless, making passing it easy. This issue is only present in the original Mega CD version of the game.
  • All of the three Zones have different backgrounds, Zone 3 is a zoomed version of Zone 2.
  • Metallic Madness Zone 3 is the only Zone in Sonic the Hedgehog CD that contains a bottomless pit.
    • Collision Chaos and Stardust Speedway also contain bottomless pits, but the player cannot fall into them unless they enter the Time Warp in a spot that would put them outside of the map in the time period they travel to.
  • In Zone 2, entering the Time Warp after being affected by a Size Beam will return the playable character back to their normal size.
  • Due to the different level designs across the timelines, entering the Time Warp in specific points of Metallic Madness Zone 2 may take the playable character to a wall, trapping them as there is no way to get out of there unless they restart the Zone or get a Time Over.
  • In the 2011 re-release of Sonic the Hedgehog CD, there is a glitch where the player can end up in the bad future version of Zone 3, even after collecting all of the Time Stones. However, this will not affect the ending of the game.
  • Metallic Madness is the only Round in the game that does not contain any Metal Sonic Projectors.



Sega Mega-CD

Bad future
Good future

2011 re-release

Bad future
Good future
Bad future
Good future


Name Artist(s) Length Music Track
"Metallic Madness" (JP) Naofumi Hataya 3:14
"Metallic Madness "P" mix" Naofumi Hataya 2:31
"Metallic Madness "B" mix" Naofumi Hataya 2:52
"Metallic Madness "G" mix" Naofumi Hataya 2:42
N/A (present theme; American version) Spencer Nilsen, David Young 2:49
"Metallic Madness" (US) Spencer Nilsen, David Young 2:08
N/A (bad future theme; American version) Spencer Nilsen, David Young 2:11



  1. Sonic the Hedgehog CD (Sega CD) United States instruction manual, pg. 14.
  2. Sonic the Hedgehog CD (Sega CD) Japanese instruction booklet, pg. 28.
  3. [1]