Question: what are all the zones in sonic mania?
Answer: 3: Studiopolis Zone. sonic-mania-studiopolis-3. ...  4: Flying Battery Zone. sonic-mania-knuckles-flying. ...  5: Press Garden Zone. sonic-mania-knuckles. ...  6: Stardust Speedway Zone. sonic-mania-review-5. ...  8: Mirage Saloon Zone. sonic-mania-review. ...  9: Oil Ocean Zone. ...  11: Metallic Madness Zone. ...  12: Titanic Monarch Zone.