Has a 20% chance to inflict the opponent with the <a href="http://pldh.net/guides/status/flinch" class="linksred">flinch</a> status effect. If the opponent is in the charge stage of <a href="http://pldh.net/dex/move/fly" class="linksred">Fly</a> or <a href="http://pldh.net/dex/move/bounce" class="linksred">Bounce</a> then Twister&#39;s power is doubled.