A Cymul (サイマル Saimaru) is an enemy in Super Smash Bros. Brawl's Subspace Emissary mode with a gray sphere with four reflector parts. It first appears in the Skyworld level. It can reflect most projectiles except a trophy stand. If a player goes near, it will use its reflector parts to spin wildly. A Cymul can also lap around a platform or just move vertically and horizontally.
First, notice the metallic sheen-- a specialized coating that allows the Cymul to reflect beams and other long-range attacks. The reflected attacks are said to be as strong as a Reflector's, so it's believed that the coating is based on Reflector technology. Coating aside, the four blades attached to its body cannot be neglected--they will slice and dice and slice.