If you have hypersonic speed and are based with a character at the start of your turn. Do you have to roll to break?

No.................

nope.............

This is straight from the PAC (and this wording has been consistent since the power first appeared in Hypertime): It automatically breaks away and can move through squares adjacent to opposing characters.

Wow, people are getting really lazy

But you'll be the one to get yelled at... Or maybe I will again.