- Main article: Character Encyclopedia
Wing, Fang, Screech and Sonar are batty bat siblings who terrifed the monsters of Monstro City so much, that they were banished from Ecto's Cave! These frightening flying mammals now like to hang out (upside down) in the Underground Tunnels.
These scarily chatty batties are always keeping their ears out for gossip, which they then tittle-tattle to the Daily Growl. Hidden in the dingy positioned to overhear monstrously scandalous conversations and whispers!
If you wander deep into the damp Underground Tunnels, you could be in for a webbed-winged surprise. These flying four could flap right into your face! Well, it is dark down there!
Chit-chatting and telling tales.
"Have you heard..."
Hanging around, in the Underground Tunnels.
- Main article: Moshipedia
Exiled from Ecto's Cave after terrifying Monstro City residents, siblings Wing, Fang, Screech and Sonar are the Underground Tunnel's premier bat residents. They keep watch for gossip to report to The Daily Growl.