|Game(s)||Newer Super Mario Bros. Wii|
Newer Super Mario Bros. Wii Plus
|Previous level||(8-) Bowser's Keep|
|Next level||(9-2) Brown Forest|
Red Lava (or World 9-1) is the first level in Special World from Newer Super Mario Bros. Wii and Newer Super Mario Bros. Wii Plus. It is unlocked via completing Bowser's Keep and collecting 354 Star Coins and finishing that will unlock the path to 9-2: Brown Forest. This level takes place inside a cavern full of red-hot lava and water bubbles.
- Star Coin 1: After the 8th bubble, drop down to find the coin, and then jump back to the bubble.
- Star Coin 2: You'll need a Penguin Suit. After the giant swimming section, grab the Super Star and then swim as fast as you can to kill the urchin who was covering it up.
- Star Coin 3: Just before the flagpole, use the bubbles to reach the coin or use the Propellor Suit.