As with Sol-Feace, the Mega-CD release has a Mixed Mode CD soundtrack along with animated cutscenes created by Madhouse.
The adventure takes Earnest to destinations which include raiding tombs in Mexico, Peru, moving trains, a forest, and the Grand Canyons, while attempting to save the world.
Unlike most platform games on the Genesis/Mega Drive, the character Earnest Evans is made up of several sprites to give him a fluid ragdoll-like movement.
Now, many years later, his grandson, Earnest Evans III, continues his grandfather's quest to save humanity from total annihilation.
During his journey, Evans stumbles upon a green-haired girl named Annet Myer in some ruins in Peru who decides to accompany him for the rest of his adventures.