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Newer Super Mario Bros. Wii
Newer Super Mario Bros. Wii Plus
Mushroom Peaks
Game Newer Super Mario Bros. Wii
World number 3
Levels 10
Bosses Ricky Wrench
Morton Koopa Jr.
Game Progression
Previous world (2) Rubble Ruins/Soggy Sewers
(B) Mini-Mega Island (secret)
Next world (4) Sakura Village

Mushroom Peaks is the third world in Newer Super Mario Bros. Wii. It's a mountainous terrain lying north of Rubble Ruins.

Its tower and castle boss is Ricky Wrench and its airship boss is Morton Koopa Jr..


Mushroom Peaks is a mountainous area with brown dirt-like ground and a variety of mushrooms. Its mountains extend and overlap part of Sakura Village and of Rubble Ruins' Fossil Tunnel. Its mountainous setting is also used in Sky Mountain, though much higher up.

Mushroom Peaks can be accessed through completing Sandship of Rubble Ruins or through completing Formidable Fortress of Mini-Mega Island. Completing Shy Guy Peaks of Sky Mountain's secret exit will unlock a shortcut to Fungi Pit. Completion of Capshroom Airship grants access to Bamboo Steppes of Sakura Village.


Level number Level name Preview Description
3-1 Chomproller Heights ChomprollerHeights.png A mountainous area featuring lots of Chain Chomps, Goombas, and Hammer Bros.. It also introduces the Hammer Suit.
3-2 Grimymole Mine GrimymoleMine.png A cave featuring many Monty Moles and Expanding Mushroom Platforms.
3-3 Butterwood Crossing ButterwoodCrossing.png A Fuzzy-filled path on a bridge. It features ! Blocks that change some tracks' directions and redirects Fuzzies. The secret exit in this level unlocks Mountain Mall, the shop of Mushroom Peaks.
3-4 Wobbleshroom Bluffs WobbleshroomBluffs.png An athletic level filled with multiple Mushroom Blocks and Mushroom Platforms, most of which are moving.
3-Towernsmbw.png Burnblaze Tower BurnblazeTower.png A tower with many fiery obstacles and moving platforms. Ricky Wrench is first fought here.
3-5 Fungi Pit FungiPit.png A Mini Mushroom-themed underground area filled with Mushroom Platforms.
3-6 Bubble Basin BubbleBasin.png An underwater level marking the only appearance of the Cheep Chomp.
3-7 Slanty Shroomroad SlantyShroomroad.png Another mountainous area, this time with a gimmick of slanted Mushroom Platforms.
3-Castlensmbw2.png Moltenwire Castle MoltenwireCastle.png An autoscrolling castle with many Fire Bars. Ricky Wrench is fought for the last time here.
3-Airship2.png Capshroom Airship CapshroomAirship.png An airship with lots of Screw Mushrooms. Morton Koopa Jr. is fought here.

Other buildings

Level number Level name Preview Description
3-Store.png Mountain Mall Placeholer image.jpg The Shop of Mushroom Peaks. It is accessible after completing Butterwood Crossing's secret exit.
3-Challengicon.png Challenge House C Placeholer image.jpg The Challenge House of Mushroom Peaks. It is accessible after completing Burnblaze Tower.
3-Musichouse.png Mushroom Music House Placeholer image.jpg The Music House of Mushroom Peaks. It is accessible after completing Bubble Basin.


  • The theme for Mushroom Peaks was originally 'Big things' and was called 'Mini Mega Mountain' however it was changed to the usual mountain theme late on.