Super Mario Bros World 7-4

The level is set castle. The clock starts at 400 seconds. There are 2 enemies placed on the map: 1 Podoboo and 1 Bowser.

Bowser. The level ends on the bridge. You can either throw fireballs at Bowser, or run past him and hit the axe at the far end to drop the bridge.

This castle is a maze. It is built from repeating sections rather than one continuous map: choose the wrong route and the corridor returns you to where it began.

Every number above is read straight out of the game files this site runs on, so the map you play here is the map being described.