introduced bi-directional scrolling stages that responded to your movement, ’s clever enemies could steal your ships, and the varied sections of and also made their mark on the genre, as did Atari’s . was a highly exciting new concept too, helped by its colour vector graphics and unusual tunnel format. But arcade maze games were the hot new trend in the wake of ’s success. The likes of and allowed you to reconfigure the added complexity with underpass and overpass sections.
