Super Mario Bros. (WarioWare, Inc.: Mega Microgame$!)
From the Super Mario Wiki
Super Mario Bros. is a microgame found in the Nintendo Classics folder in WarioWare, Inc.: Mega Microgame$!. The name, graphics and gameplay of this microgame all pay homage to the classic game, Super Mario Bros.
The objective is to squash the Goombas by jumping on them. The player can also stomp them in succession to earn 100-200-400 points, although it does not have any effect in the microgame. If the time runs out and the player does not defeat the Goombas or if Mario gets defeated by the Goombas, he or she will lose the microgame.