Oh, yes I have seen those. If you watch the one where the creature materializes in the snow, Look above it. Two limbs above it move to release snow falling to the ground to project an illusion of it materializing from thin air. No other limbs move at all except those two so conveniently . They don't move any other time, except for the illusion of materialization. This is a red flag for me. The creatures in his films look oddly like a hippy-ish Christopher Lee to me.