It's a level featuring Red/Blue blocks that switch whenever you jump, similar to the flip panels from Galaxy and 3D World/Land. As well as the Hoppycats from Wonder.
Took me about a month to make (because i'm lazy lol).
It's so good!!! I enjoyed this level a lot, it's so fun to play! I liked all the little details like the little cutscenes. The aesthetic of the level is awezome! very charming and nostalgic.