I started this project a couple years ago and never finished it, just got back to it and hope to have it done for this year. The basic idea came from Scary Terry's version, mine is a little more beefed up and uses 2 cylinders for the arms. I also used 1" square aluminum tube instead of conduit. He stands 6'- 4" to the top of his head, also 6'- 4" finger tip to finger tip. The mech is a 4-bar and raises him up and out so it looks as though he is leaping at you. The mech raises him up to 7'- 6" and out 4'- 6" in 1 second. Once he's up, the arms swing straight out at you. He starts out with creepy talking along with left/right head movement and an LED taillight inside the head flashing in sync with the words. When that stops I can release him with a keyfob remote.