|Game||Newer Super Mario Bros. DS|
|Enemies||Big Dry Bones|
Fire Piranha Plants (fight)
|Previous level||(2-4) Wagon Way|
|Next level||(2-5) Tightrope Ravine|
Fliptube Tower (or World 2-) is the tower and the fifth level of Crystal Sewers in Newer Super Mario Bros. DS. It takes place in a Dry Bones-filled sewer-styled tower where the walls wrap around the player. Bowser Jr. is fought at its top.
Fliptube Tower is unlocked by completing the normal exit of Wagon Way. Completing it will unlock Tightrope Ravine.
- Star Coin 1: Near the start, this Star Coin will be in plain sight next to a Big Dry Bones. You must carefully use the wrap-around feature to go from the left wall and appear on the right, without hitting the Big Dry Bones.
- Star Coin 2: After the first few Big Dry Bones, this Star Coin will be in plain sight on the left of the screen. Simply run and jump to the right wall and you'll reach it.
- Star Coin 3: At the end, this Star Coin will be in plain sight. To get it, you must first activate a ! Switch at the top of the level, then go back down and use the Red Blocks to activate a ? Switch. This ? Switch will destroy some Stone Blocks, which'll allow you to get the Star Coin.
|Walkthrough (17:43 to 20:28)|
|Tower||Tower theme from New Super Mario Bros. Wii.||Main areas|
|Tower Boss||Remixed boss theme from Super Mario World with a few elements of the version from Super Smash Bros. for Wii U.||Bowser Jr. boss fight|
|Areas||Levels||Crystalswoop Grotto • Pipebreak Cave • Switching Sewer • Hydroskip Drain • Wagon Way • Fliptube Tower • Tightrope Ravine • Gushing Culvert • Flameburst Flotilla|
|Other||Item House • 1-UP House • Mega House • World 2-|
|Enemies||Enemies||Big Piranha Plant • Big Swoop • Bob-omb • Bullet Bill • Buzzy Beetle • Cheep Cheep • Dry Bones • Fire Piranha Plant • Hammer Bro • Koopa Paratroopa • Koopa Troopa • Mega Cheep Cheep • Piranha Plant • Skeeter • Swoop|
|Bosses||Bowser Jr. • Mega Goomba|