 One of the most difficult aspects of "Beast III's" development was parallax scrolling; Edmondson compares "Beast I" and "II's" methods of scrolling, saying that "In "Beast I", we chose the most obvious and the easiest way of doing it, but the problem with that was that you couldn't have monsters running over the foreground at the same time.They had to be very spaced out and nowhere near interesting parts of the map ... [For "Beast II"] we fixed it so that we could have monsters around ladders and bits of buildings, but the background suffered and basically just a silhouette.