Interesting read.<p>I come from a C64 origin, cracking games and writing crack intros, where I’d use sprite multiplexing to do top and bottom border sprite scrollers. You could do side borders too if you timed it correctly.<p>Either there were sprites moved or textual data rotated through an array of sprites.<p>Arcade games would often use a similar approach of multiplexing to do attack waves of baddies moving along the x-axis. Obviously, they were constrained in y-axis.