T. K. Arispe

 This was actually a joke the developers themselves put in! An NPC in Celadon City south of the Celadon Department Store says this, poking fun at how the brick pavement pattern in the open area by the department store is pretty disorienting when you're looking at it on a tiny Game Boy screen.

Oh, the old-school days before you could play 3D games on a handheld console.