https://www.polygon.com/2019/2/18/18229701/super-mario-maker-2-switch-new-features

Nintendo unveiled a sequel to Super Mario Maker for Switch last week during a jam-packed Nintendo Direct presentation. While the company didn’t say much about the game during that livestream, the debut trailer for Super Mario Maker 2 says a lot. The trailer is stuffed with information about what’s new in the sequel, and fans have been picking it apart for unannounced details.

The most obvious new additions in Super Mario Maker 2 are the ability to add slopes — a la Super Mario World, a feature Nintendo devoted nearly a third of the trailer to — to level designs, and new gameplay elements from Wii U game Super Mario 3D World, like the Cat Suit, transparent warp pipes, and enemies like the Ant Trooper, Piranha Creeper, Porcupuffer, and Skipsqueak.