Full-course spectator atlas

Super Mario Bros.

The complete spectator route runs from Race Start through all 32 main courses to Race Finish. Main-course and alternate-area geometry is decoded only from your local ROM. Alternate/bonus areas are attached to the right of their parent stage in route order. Every racer keeps an independent Mario position and sprite, while the selected racer owns the visible dynamic world—enemies, shells, power-ups, lifts, Bowser and persistent coin/block mutations—so different emulator worlds are never merged into a scene that did not exist. Entering an alternate area freezes the racer’s main-course position and creates a fresh local area instance for live X/Y tracking. Every course keeps the NES pixel aspect ratio, so short transition and bonus rooms stay physically short instead of being stretched to main-stage width.