I'm trying to figure out what tfs and endings there are, I know of the rubber Mary tf but don't know to get it. Also seems like the v2 artpack is not showing in the itch downloads. The gold dolls are hard to deal with even on easy.
Doll, Claygirl, Resin Titan (that's the yellow doll), Ice, Glass, Rubber, Statue. There are several variants of each TF that give different endings. There are multiple doll/claygirl endings, for example.