Myumelzee is a Hyper-Zoanoid that appears in the Guyver TV series' fifth episode, The Third Shadow, along with fellow Hyper-Zoanoid Noskov. Both are dispatched by Chronos to capture Sho Fukamachi, using their sonic attacks to subdue him. However, Sho discovers the Guyver's Sonic Buster weapon during the fight and uses it to annihilate Myumelzee.