Naruto Copyrights Issue

So i’m making this game on a platform called Byond and the show Naruto is my inspiration for making this game. The question is what is copyrighted and what is not in Naruto. Lets say for Example can i put in Uchiha Clan, Senju Clan etc…. and Characters full names like Tsunade Senju, or Items names like Samehada whithout being chased lol.