"Ah, you haven't changed at all, darling." Ash chuckled, unfazed by being called by their first name. 

"He's only able to do all that since he's currently summoned. If I say Beetlejuice three times or if we become separated, he's unsummoned. Only a small fraction of his powers to use." Lydia explained before glancing at him. "A good portion of the time, he's been what others call a ghost. But now that we're free, he's able to fully be himself."