This is a Steam-Powered Ninja Warship that I built over 2 days. It took about 4 hours to make, but it was a challenging build finding all the pieces for it. It has a cannon on deck and a catapult on the battlements atop the Captain's Quarters. The propellers, which turn 180 degrees, run on a single steam engine and are connected by tubes to their positions on the sides of the boat. One other thing is the lookout Crow's Nest that is near the middle of the boat, but to sit on it you would need ninja-like balance! Overall I was happy with this creation, but please still add reviews and comments!