New Super Mario Bros. Wii Walkthrough Part 9: Back and Forth
Channel: PkGam
Date: 21/02/2011

Due to the game's design I had to go through a level twice at separate times for the secret exit. No biggie as I explained why and showed them all off in the same video to avoid confusion between parts. I made sure of it. I'd rather have the video long than have the info split up in most cases. Luckily that wasn't the case and the length was just about right for my tastes.

Time Stamps:

0:00 3-Fortress
5:20 3-4 (Secret Exit)
8:28 3-5 (Both Exits)
13:30 3-4 (Normal Exit)

Enjoy!