THIS PAGE IS INCOMPLETE. PUZZLEBARK DOES NOT ALLOW EDITING THIS PAGE. VIOLATORS WILL BE KILLED BY E.N.T.I.T.Y. BTD:THW is the sixth installment in the Bloons Tower Defense series. It features many new game mechanics, towers, bloons, and tracks as a BTD sequel should. It introduces a campaign, more special missions, more random missions, and much more awesomeness.