The plot of Congo’s Caper involves a half-human, half-monkey boy named Congo, who sets out on a quest to rescue his girlfriend after she is abducted by a demon. The player controls Congo. Congo’s Caper is played across 35 levels that take place in multiple worlds, including a jungle, a mountain range, a pirate ship, a volcano, and a ghost town. The bosses include the demon, a T-Rex, a ninja, a pirate, a mad scientist, and a vampire.
If Congo is hit by an enemy, he reverts to his monkey form. If Congo is hit again, the player loses a life. If you were a monkey, just hangin’ out in the jungle with your chimp-chick, and a magic ruby fell out of the sky and zapped you both, turning you into half-humans, and a demon-kid swooped down and made off with your girl — what would you do?
You’d high-tail it after them and stop at nothing to save her, that’s what — ’cause you’re Congo, the money-turned-superkid, and only you can uphold the law of the jungle! But it’s more than a jungle out there — your search for little Congette will take you from ghost towns to pirate ships to ninja castles to the belly of a Tyrannosaurus. This is no time for a banana-break — you’d better get down to monkey business!