Metropex (not metroplex) G1 transformer. Fully functional and is able to transform to tank mode and city mode. comes with shoulder cannon and sword. I highly advise using PETG filament on moving parts. For the head plate you can use a small spring either from a clickable pen or any other small spring thats strong enough to eject the head. I just added a new sword and new turrets for the legs. When fully built stands at around 2 foot tall.