[Riku laughs at his Replica's reaction. Sorry, man, but that jumpiness is too funny for words.

But he manages to stifle his laughter after a second and nods.]

Depends on the floor. I'd stay away from anything remotely dark and dreary, for one. And if you hear strange sounds, that's a telltale sign that you should probably hit the stairs. Also, don't touch any mysterious curtains.