He's right in the fact that Tyki is still haunting the ballroom. The man is easily spotted by the manner in which he wasn't in any particular hurry to get out of the way or scatter like other guests were doing. He has no orders right now and that serene smile still affixed to his face with a rather dull expression to his eyes almost looks like he's on standby. He's watching the chaos below with a heavy disinterest compared to how exhilarated he looked at Sans and Lambert fighting.

The ballroom is crumbling and he's planted firmly on the railings of one of the barely intact balconies. There is no telling if his guard is up or not or if he's even paying attention. He's just waiting patiently for anything.