|Metallic Madness Zone|
|Eleventh level, Sonic Mania|
|Number of Acts: 2|
|Level theme: industrial|
|Sub-boss: Egg Pistons Mk. II|
|← Lava Reef Zone | Titanic Monarch Zone →|
Metallic Madness Zone is the eleventh zone in Sonic Mania, which is based on Metallic Madness from Sonic the Hedgehog CD. Unlike the earlier Stardust Speedway Zone, both acts take place in the Present.
Act 1 has elements from the Past version of the zone as construction work is nearing completion, though the work cranes can still be seen outside through the holes in the dome, and the music is a remix of the Past theme. A new element exclusive to this act is that the seesaws now catapult the player into a second layer of level geometry in the background, which the player can then explore, returning to the foreground by using another seesaw. This is much like in Sky Babylon from Sonic Rush Adventure.
Act 2 goes deeper within the mechanical base, being based on the original Act 2 while also sporting the background from the Bad Future of Act 3. Alongside the return of some features of Act 2 such as the rotating wheels and the iron curtain puzzles return, the shrink ray gimmick also returns, this time with an increased focus, as there are now several places where you must shrink down to proceed through tiny passages and transport tunnels. The main boss is also fought while tiny.
|Reference||Appears in||Source Game||Source Level|
|Level geometry in the background that the player can go to.||Act 1||Sonic Rush Adventure||Sky Babylon|
|Final Zone Boss's appearance as a mini-boss.||Act 1||Sonic the Hedgehog (16-bit)||Final Zone|
|The main boss machine's design based on the Botanic Base Boss .||Act 2||Chaotix||Botanic Base|
|Miniature versions of Marble Zone boss during the fight against the main boss.||Act 2||Sonic the Hedgehog (16-bit)||Marble Zone|
|Miniature versions of Drill Eggman during the fight against the main boss.||Act 2||Sonic the Hedgehog 2 (16-bit)||Emerald Hill Zone|
|The miniature robotic versions of Amy Rose, chasing the player the same way as the original Amy, during the fight against the main boss.||Act 2||Sonic the Hedgehog CD|
|The Amy robots having design elements based off the Tails Doll.||Act 2||Sonic R|