"A bone-chilling combination of three flavors, teamed for maximum performance."
Known as Icy Trio in the game, they are a special fusion. In the Dead Future of Rem a Morton will be in the fusion room. He will mention a Lemon, Melon, and Strawberry in conversations. When the Protagonist has collected all three and then talk to Morton he will fuse the three Icy demons together to make the Icy Trio. This is only available until the future is changed, after which Morton disappears.
A Icy Trio is also the second award given by Kaz after losing twenty times in BattleNet.