It's still enough that it has a punch. A monster transforming into a bigger, better one. They had never taken on something so big. Even the teeth alone were bigger than Chara. And that was enough to read the situation.

They run as fast as they can. A knife alone wouldn't cut it. Something to think about for the future. So they run. But even if Bigby does track them to finish the job, he'll hear them laughing all the way.

So much fun. So, so much fun! There was a little fear there. Someone like them. Fear. It's so cool!