User blog comment:InklingChris/Jigglypuff's Sheild Break Suicide Glitch./@comment-24416652-20151230145032

Are you talking about if you hold Jigglypuff's shield until it breaks? If that's the case, that's supposed to happen. It's one of the many strange quirks of Jigglypuff. If you hold its shield until it breaks, she simply flies off of the stage. You can find this in Tips inside the game.