The epic confrontation with Bowser. Like the original level, you choose 1 of 4 first room. Of note, all switch palace are in 3 first room. Here is the list of switch palace and room:
-Yellow switch: Room 1
-Green switch: Room 2
-Red switch: Room 3
-Blue switch: Outside ( When you have not entered the room 4, you can see the blue switch. )
-When you complete room 4, it will get you where you select the next room but you can only choose room 5.
-When you complete room 5, it will continue to take you to the room 6, room 7, room 8, ... without having to reselect.
-Note: I did not steal room from The New Mario World, just a idea from that and I create a different level.