FLCL was an anime first and then got a manga adaption while the anime was still running. I remember it having a different plot than the anime. Kinda of a bore, but it sure wasted an afternoon or two.

FLCL… I would say it’s best to marathon it with friends so you can all complain how none of it makes sense. It starts making sense on the second watch, in the sense that a dream makes sense in the context of the dream.