While in search of Egon Spengler's lost soul, Peter Venkman and a crew from 20/40/60 ventured into a nether dimension. Along the way, they encountered these Flying Hands, basically a bunch of hands in a conglomerate form that resembles a bat. Peter was able to drive the flock away with his Proton Pack.
On the visual commentary from The Real Ghostbusters Complete Collection, episode writer Marc Scott Zicree confirms the flying hands were inspired by Dali. Salvador Dalí was a famous Spanish painter known for his contribution to the field of surrealism.