Heart shaped switches that toggle the environment between hot and cold. When flipped from cold to hot, Bumpers/Sparkly Platforms become Angry Bumpers/Hot Bumpers/Hot Platforms; Shattering Blocks become Launching Blocks; Ice Walls become Conveyor Walls; the ice in Rising Ice/Magma becomes magma; and the ice in Ice/Magma Corridors turns to magma. When flipped from hot to cold, these changes reverse. These switches are exclusive to Chapter 8. Names for this object include Core Switches and Hot/Cold Switches.