Mario and friends should still be able to pick vegetables to toss at foes, enter Subspace in search of Super Mushrooms, and be able to hop atop wandering enemies for a brief ride. (pressthebuttons.com)
Super Mushrooms return in Super Mario Bros.: The Lost Levels, working as they do in Super Mario Bros.. (mariowiki.com)
Another aspect of this game is that one can place Super Mushrooms on enemies so they become giant, so to speak, or at least bigger variants of themselves. (mariowiki.com)