There are parts of this level that aren't required to complete in order to reach the exit elevator.
The door at the end of the map may look like a Danger Room but it's not since you don't need to pay to enter.
Even when the monsters of this area are mostly of the Slime family you will encounter many Lumbers and Silkwings.
Map of Meteor Mile III.
The path to one of the two energy doors in the level.
An area with minerals and treasure boxes.
The area for the final battle.
This is not a Danger Room since you dont need to pay anything..