Seeing Chara looming over him like that makes the Batman tense up, his jaw clenching together as he prepares for a fight. He's fought opponents bigger than himself, but admittedly, it's not a common situation for him... In fact, the situation as a whole feels wrong in a way he hasn't put his claw on, but he focuses on the most important thing: He has to protect Sophie and Frisk.

"Yes, I can."

The words are firm, and the Batman follows them by pouncing towards Chara, his claws and teeth bared.