only Famicom Disk   System, which used a disk format that resembled a 3.5" floppy (as opposed to   the regular Famicom and the English NES, which used cartridges), the game   stops for a few seconds to read and load data in certain spots (such as when   the player enters a town). When this occurs, a black screen with "W A I T"   written in white letters appears. 