The cover for
Phantasy Star Adventure, illustrated by Takashi Akaisizawa, invokes the artistic style used for
Phantasy Star II cover and manual illustrations. The city skyline and twilight sky shown here particularly invoke a similar scene from the latter game. In the center of the cover, the major characters of the title, except for the unseen character who represents the player, are arranged on a stylized representation of the blue jewel the redheaded girl wears. This is also the only instance of a
Phantasy Star game including the final boss on the Japanese cover art.