In the opening scene in a shoe store, Max has a short cigarette in his left hand as he starts to sit. When the camera angle changes, the cigarette is in his right hand and it is freshly lit.
When 99 is cleaning the window the background shows a parked car indicating Max's apartment is on the ground floor. In the later shows Max's apartment is at least one flight UP from ground level.
When the KAOS Agent is heading to the kitchen he goes to the LEFT of the front door. In the later shows, the kitchen in the apartment is to the RIGHT of the front door.