Cloudy Mountains [38A]
This level revolves around the enemy Foo. Foo are the cloud-looking enemies that throw smoke all over the place. Mario, Luigi, and Toad can get rid of the smoke by spin jumping. Peach and Link are at a disadventage, but you can still beat the level as them.
A level that provides a lot of fun that can entertain you when you want to mess around in SMBX. You also can open 'lunaworld.lua' and change some things by reading the instructions provided.
I made a redstone-like system in SMBX!