Ice Wing

Ice Wing (アイスウイング) is a bird enemy from Mega Man X4 that appears in Frost Walrus' stage. If not destroyed quickly, they'll cover parts of the stage with ice. Not only does this make slick footing, but if Metall D2s or Fly Gunners are on the stage at the time, they get ice spikes. Ice Wings also can be dangerous when crossing holes. To avoid the room getting frozen over, kill them with a quick Rising Fire or Ryuenjin.