Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics

actually that having 4 characters wouldn't really give you copyright.... Who ever told you that is wrong... NOW! if you made  4 characters with Blue purple red orange, made them eat pizza,  and saying "COWABUNGA"  then you might get Copyright.  put for having 4 characters with ninja turtles weapons... not really..... Plus from the looks of it the russian character only has one sword and the USA character only has one nun-chuck Sooo your good :) plus if you don't want the black dude have Sai's their are other ninja weapons ( Kamas,  Flighting Fan,  and the Shoge Hook with 13" Chain)

thank you! there is a lot weapons to choose... :)