The full level and some explanations can be seen in this image: https://i.imgur.com/rdCxZd5.jpg https://i.imgur.com/rdCxZd5.jpg And there is actually a reddit

The full level and some explanations can be seen in this image: https://i.imgur.com/rdCxZd5.jpg https://i.imgur.com/rdCxZd5.jpg And there is actually a reddit thread: https://www.reddit.com/r/MarioMaker/comments/44b7cd/a_3bit_binary_adding_machine_with_decimal/ https://www.reddit.com/r/MarioMaker/comments/44b7cd/a_3bit_b... Sorry, I was linked to the YouTube video directly and discovered those after submitting the video to HN.