Noo appeared in 2000 video game called Kirby 64: The Crystal Shard. Noo is an enemy that only appeared in Kirby 64: The Crystal Shards. It is a ghost that inhabits the ruins on planet Rock Star, peering out of holes in the walls and tossing fireballs at Kirby.
Noo is a transparent, white ghost-like enemy with spherical hands and a smiling face.