Downloading and setting up the level editor

The only current level editor is TheFourthDimension.

If you need help to set it up or want to see how it works you can watch this video guide. If you need help dumping your SM3DL romfs, you can visit this page

Steps to follow
1. Once you have downloaded The4thDimension, extract the contents of the zip into a folder and start the .exe file.

2. You will then be prompted to select your romfs folder in which you enter the path of your romfs folder.

3. Next, you will be asked to convert the object models, click yes to confirm. Now everything should be set up and you're set to modify or make new levels.