As a member of the Mystical Fighters, you'll venture to a place known as The Underworld in a battle to defeat the Evil Lord Kabuki and save your kingdom.
From space, a menacing fortress appears in the sky. Surrounding it, a "trampoline" sidewalk armed with bombs and patrolled by enemy invaders. You, the Trampoline Terror, have the guts to fight back.
Target Earth is about Earth's outcasts, who have become Cyborgs, returning from space to attack the civilization that remained behind. The Earth Defense League fought to defend earth in a galactic war.