Sonic Mania Plus: Mania Mode: Part 11: Metallic Madness Zone (Super Sonic & Tails)

Each of the Genesis Sonic games, including CD, have their own feel and aura to them. I can definitely feel here going from Lava Reef from Sonic 3 & Knuckles to Sonic CD's Metallic Madness.
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There's nothing new that Plus added to Metallic Madness until the very end of it after beating Eggman. Your character(s) manages to go outside of the base and notice a gigantic, imposing mech in the background. That is the Titanic Monarch.
During this, lighting also strikes to show this mech off. If Tails is there during this cutscene, he'll jump in a fright. "I'M AFWAID OF LIGHTNING!"

[@dewaynecook4589]

I love how they acknowledged Tails' astraphobia.

[@melisaalaj6297]

Metallic Mandas Sonic CD Sonic mania

[@Jamesthefox203]

Hellow