Event 38: Super Mario Bros. 2
From SmashWiki, the Super Smash Bros. wiki
Super Mario Bros. 2 (スーパーマリオＵＳＡ, Super Mario USA) is the 38th event match of the 51 event matches in Super Smash Bros. Melee. As the title says, this event is related to Super Mario Bros. 2, the characters and the stage, namely fighting against Mario, Luigi, and Peach on the stage Mushroom Kingdom II. Opponents can damage each other easing it for the player.