Batman: Return of the Joker (1991) is the sequel to the first Batman game for the NES. Being one of the later NES titles, it shows surprisingly good and fluid visuals, fullsize art, and decent sound — all without slowdown issues!
The gameplay has undergone some changes compared to its predecessor. A welcome addition to it is a slide movement, similar to the one in the Mega Man series. A not-so-welcome addition is that half the stages are autoscrolling, and there are no close combat weapons now.