From the word sneak with the suffex -er, meaning an individual who moves or travels in a stealthy manner.
Unknown. It is a Scary.
A cubic entity with red gradation going from dark red at its legs up to bright red at its head. In addition to its coloration, the rope that sprouts from the top of its head gives off the appearance of a stick of dynamite. It wears a black spiked collar just below its head.
Enemy character. Gameplay unknown.