Super Mario Maker 2:

[vizIIsto]

I only have Super Mario Maker on the 3DS, but I don't play it a lot anymore.

I can remember that I made some Mario Kart levels, where I put some enemies in Clown Cars, and you had to catch up in your own Clown Car.
The tracks I remember to have made were a Luigi Circuit (in the style of SMK), Chain Chomp Caverns (with some Chain Chomps, and the finish was inside a big Chomp built out of blocks), an underwater race with Cheep Cheeps and a lava stage along the lines of Freezeflame Galaxy.
Oh, why did I delete them...