H.o.p. Experiments with Becoming Mr. Dark Juli Kearns November 2, 2009 Art-Photos Leave a Comment The Child Experiments, 2009 Nov, Hop as Mr. Dark View On White View On White View On White View On White From The Child Experiments series. H.o.p. as Mr. Dark, a favored character of his from Rayman. Above is also one of the little models he’s done of Mr. Dark.