I used multiple Constructbots to make Unicron. Talking about a pain in the rear, I had to make sure that I had the right pieces. The irony is, he over-towers my voyager classes Megatron custom and G1 Optimus Prime. As far as the Unicron head, I found my Constructbots Slug and used his horns and added it to the Purple Constructbots Megatron. In the end, I give you my masterpiece. Let me know what you think of him? Also, note...he doesn't transform as of yet. I haven't came up with an alt mode.