Board Thread:General Discussion/@comment-4384097-20160120113421/@comment-34326521-20160120193642

One was created for an Asian play, the other was created by an actual writer. I'm willing to bet the play was either performed in violation of copyright laws, or specified that anything new in it was the intellectual property of the play writers, thus making it impossible for the Ben 10 writers to use it in their series. I'm also fairly certain Ventrilosquid is a reboot transformation.