Octopusy

A Robber? No; his scheme was free Of aught octopusy or sharky; He planned, as far as I can see, An Altruistic Oligarchy; […]

"Sting rays?" Dodson chuckled. "They scram when they see you. And that little shark wouldn't hurt a baby." "It looks octopusy." she said. "They never get big around here." "Morays, then?" Dodson laughed.

I'm at "worlds collide" level, where i don't know how i have to kill the big octopusy monster!