1. Newer Super Mario Bros U
2. Newer Super Mario Bros Ds

Now, you need to plug your SD card with at least 4GB into your computer. In the root of the SD card, there might be a folder called, 'private'. If there is, just rename the folder to 'private_old'.
Now, take the contents of the LetterBomb folder and place them in the SD card. This should only take a few seconds. Remember, only copy the contents of the LetterBomb folder, not the actual folder itself. Once the files have been copied to the SD card, you can delete the LetterBomb folder, it will not be used again in this tutorial.
Properly eject the SD card from your computer and place it into the SD slot in your Wii. Next, go to the Wii Message Board. Scroll a few pages back until you see a red envelope with a bomb shape inside and an SD icon hovering over it. Click on the icon. Scroll to the bottom of the message and click confirm. After about 10 seconds, a page that looks similar to image 9 should show up. It may take a minute or two for the 'Press 1 to continue' to show up, but be patient. When it does, press 1. Next, press A to continue. On the next page, use the D-Pad and A to choose to install the Homebrew Channel. When the Homebrew Channel has finished installing, select 'Exit' and go back to the Wii Menu. A new channel should have appeared in the next empty space on the Menu, that channel should be the Homebrew Channel.

1. Newer is a full unofficial sequel to New Super Mario Bros. Wii, crafted over the span of 3 years by a team of devoted Nintendo fans. Playable legally on any homebrew-enabled Wii; no piracy or hardware mods needed. Download Newer!
2. Download page for New Super Mario Bros. Mario must use all of his abilities as well as several new power ups to rescue Princess Peach from the clutches of Bowser Junior in the first Super Mario Bros. Game for the DS.

Newer Super Mario Bros U

Newer Super Mario Bros Ds

Newer Super Mario Bros Wii uses a highly edited source code, required to make custom maps. Custom maps using the original game's source code is next to impossible. NSMBW is a lot more limited/harder to hack than SMW, and that's something you're gonna have to get used to with these NSMBW hacks appearing on SMWC. Newer Super Mario Bros.