Ninja Mod

This is my first mod that adds entities, and a mob, the ninja mod! This mod, as you can guess, adds a hostile mob called ninjas. They move very fast, and even have their own fighting technique. They run circles around you, and jump in every so often to deal 2 hearts of damage. The ninjas themselves have 15 hearts. When killed, they drop 0-2 obsidian, and have the same rare drops as zombies. Because these are warriors of the night, they burst into flames during the day. They also have the power to break down doors, because they are just that awesome. And if you see any weird mobs in the background, just know that those are not the mobs I added. I added just ninjas, those mobs belong to the Mo` creeps and weirdos mod.