[simne]

Sorry disclaimer, I'm too lazy to immediately check everything myself, but will, and will write confirmed or not-confirmed.

So, I read comments and few surface details. What I note:

1. Original project is MIT licensed. MIT only forcing, IF you use it, to make special page with mentions of all MIT licensed code used in project and nothing more.

2. ANY software project could being divided to separate independent parts, which will be then rewritten based on clean room methodology, and after this you could just remove ANY mentions of MIT licensed code which was used earlier. As I understand, person who copied your project, rewritten all your code himself and NOW he have not any your code in project.

Unfortunately, now you only can do something much exceed properties of your tween, so he will have to race with you or you'll win.