The game also features strong usage of deep, bass-heavy music tracks, creative and colorful artwork and foreground and background elements. Despite the many obstacles in the scenery and landscape, the player cannot be harmed or die by bumping into anything other than an enemy or enemy fire. Players can, however, die by being crushed between the screen's edge and a wall. Scrolling and enemy movement is extremely fast in comparison to other games of its time. The player travels through eight levels, each one increasing in difficulty, with the last three only being available on the higher difficulties.