I think it was from one of the Creep Show movies, Tales from the Crypt, or a similar collection, but a short about teens on a raft on a lake being picked off by some kind of black slime/algae thing. Never been comfortable swimming in lakes since

Oh man, completely forgot about this until now. Could explain why I’m not a cat person

NES Batman, the first level. That is pops into my head all the time. Also, the main theme and cabin interior music from Friday the 13th. Final mention, Legend of Kage had some rad tracks.