Super Mario Maker 2 may have added Legend of Zelda hero Link back in December, but its April 22 update is all about classic Mario elements -- like the ability to create your own world maps. You can use them to link up to 40 courses together, and essentially create your own old-school 2D Mario adventure.
You can choose from themes like basic green field, underground, desert and snow, create a layout, then add routes, Toad Houses (so you can force people to play that infuriating picture-matching minigame) and pieces of scenery. After that, you can drop courses you've made onto the route and share your masterpiece online.
It brings a bunch of powerups like the Frog Suit and Super Acorn too, but the coolest is the Super Mario Bros. 2 Mushroom. It gives you abilities that were unique to that game, so you can casually stand on enemies' backs, pick them up and mercilessly throw them.