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Moltenwire Castle
Game Newer Super Mario Bros. Wii
Level number 3-Castlensmbw2.png
Time 500
World Mushroom Peaks
Level type Castle, Autoscrolling
Enemies Dry Bones
Flame Chomps
Boss Ricky Wrench
Game Progression
Previous level (3-7) Slanty Shroomroad
Next level (3-Airship2.png) Capshroom Airship

Moltenwire Castle (or World 3-Castlensmbw2.png) is the castle and the ninth level of Mushroom Peaks in Newer Super Mario Bros. Wii. It is an autoscrolling castle filled with Fire Bars. Ricky Wrench is fought at its end.

Moltenwire Castle is unlocked by completing Slanty Shroomroad. Completing it will unlock Capshroom Airship.


Boss battle

Just like the tower battle, Ricky Wrench throws wrenches repeatedly, but this time, they explode. You must carefully avoid the exploding wrenches and also ground pound his head whenever he is vulnerable. Hit him three times, and you will win the battle.

Star Coins

  • Star Coin 1: At the start of the level, this Star Coin will be in plain sight. Either perform some wall-jumps or use a Propeller Suit to reach it before it's pushed off-screen.
  • Star Coin 2: It is recommended to have activated the Yellow Switch for this Star Coin. After the first two Swinging Platforms, jump to the upper level, then carefully follow it to a platform that can only be found after activating the Yellow Switch. You can also use a Propeller Suit to reach it, but watch out for the Fire Bars.
  • Star Coin 3: This Star Coin will be in plain sight in between two Fire Bars. Either carefully wall jump between the blocks beside it, or use a Propeller Suit to obtain it.



Newer Super Mario Bros Wii World 3-Castle Moltenwire Castle Star Coins