Tamaki supposes that explanation makes sense. When he died, the clothes he'd been wearing came to the afterlife with him. It must be the same for every time he turns intangible here in the Carnival.

But at that question, he laughs a little, looking at Strange incredulously.

"I walked through the wall to get in here."

Did he really not notice at all? Tamaki had thought maybe he was just used to this sort of thing. It's kind of funny to know he actually snuck up on the magician.