Guess what? MORE BLOCKS! After creating the double doors for the Boss fights, I was in the mood to create some of the floor blocks for the Fortresses and Castles, as well as some sand blocks for underwater and desert levels. I also made a purple brick block for jungle levels in the future World 2. The ring looking things are called Donuts and are important for level building. In Mario games, Donuts act as a temporary platform. If you stand on one for a set amount of time, it will eventually change color and fall out of the air, forcing you to either to constantly moving on them or jump off of them to prevent falling with them. The block on the bottom right is an extra I'm stuck on. It's a lighter variant of the darker bricks with the carpet, I could possibly use it for outdoor environments.