|Game||Newer Super Mario Bros. DS|
|Level type||Underground, Sewer|
|Enemies||Big Piranha Plants|
Koopa Troopas (G & R)
|Previous level||(2-2) Pipebreak Cave|
|Next level||(2-4) Wagon Way|
(2-A) Hydroskip Drain (secret)
Switching Sewer (or World 2-3) is the third level of Crystal Sewers in Newer Super Mario Bros. DS. It takes place in an underground sewer full of Piranha Plants and manholes.
Switching Sewer is unlocked by completing Pipebreak Cave. Completing its normal exit will unlock Wagon Way, and completing its secret exit will unlock Hydroskip Drain.
- Star Coin 1: At the start, when you hit the ! Switch, quickly get up the Red Blocks. At the top of these Red Blocks will be the Star Coin, too high to reach without the blocks.
- Star Coin 2: Right after the first Star Coin, this'll be in plain sight, blocked off by some Stone Blocks. Get past the Big Piranha Plant, then activate the ? Switch up above. Then, instead of entering the Warp Pipe, jump up to make the Flipper close, and grab the second Star Coin.
- Star Coin 3: You need to be Super Mario or up to get this Star Coin. After the checkpoint, there'll be a ! Switch. Hit it, then break the Brick Blocks near it. You'll then have to wall jump up to get the Star Coin.
This level features a secret exit, which'll lead you to Hydroskip Drain. After the checkpoint, there'll be a ! Switch. Once you activate it, run right as fast as you can. Avoid the Flippers below, then enter the Warp Pipe which is only accessible with the Red Blocks. This'll lead you straight to the secret exit.
|Walkthrough (6:07 to 9:29)|
Secret Exit (N/A to N/A)
|Underground||Remixed underground theme from New Super Mario Bros..||Entire level|
- In the video, "SlidePlayer Progress1," Switching Sewer shown with the name "Switch Shift Sewer," an obvious reference to Switch Shift Grove from Newer Super Mario Bros. Wii.
|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|