Sonic Mania - Lava Reef Zone Act 2 Special Stage Rings

Got a whopping five SS rings in this act. Sonic & Tails can hit the four in this video, and Knuckles (& Knuckles) get one all to themselves on the special Knuckles path that diverges just below the first ring in this video. The ring is hidden inside the left wall of the second magma pit on that route. Just gotta make sure you keep a Fire Shield up so you can run across the magma. Or just abuse iframes.