Mushroom Peaks (codenamed Mtmush) is the third world in Newer Super Mario Bros Wii which lies north of Rubble Ruins. The tower/castle boss is Ricky Wrench and the airship boss is Morton Koopa Jr.


Mushroom Peaks is a mountainous area. The mountains extend so far it overlaps part of Sakura Village and Rubble Ruins's 2-A: Fossil Tunnel. It’s mountainous setting is also for sky mountain.


3-1: Chomproller Heights

 3-2: Grimymole Mine

3-3: Butterwood Crossing

3-4: Wobbleshroom Bluffs

3-Tower: Burnblaze Tower: A tower with many fire obstacles and moving platforms where Big Rocky Wrench is fought.

3-5: Fungi Pit

3-6: Bubble Basin

3-7: Slanty Shroomroad

3-Castle: Moltenwire Castle: A sidescrolling castle level with many Firebars that Big Rocky Wrench is last fought in.

3-Airship: Capshroom Airship" An airship with lots of capshrooms that Morton Koopa Jr is last fought in.


  • The music in some of this world's levels are remixes of the theme for World 6 Map from New Super Mario Bros. Wii.

Other Buildings

Other buildings in Mushroom Peaks:


The bosses for Mushroom Peak.