Recovering the Past: "Caleb Adventure" Brings Retro Heroism to the MSX! Retro gaming fans have a new mission: infiltrate the castle of Baron Buuu-hahaha and reclaim a stolen legacy. In the newly released title Caleb Adventure, players step into the shoes of a hero on a deeply personal quest. The villainous Baron Buuu-hahaha has absconded with Paulo’s prized MSX cartridge collection, hiding the loot deep within his Castle. It is up to you to navigate the treacherous halls and recover the stolen hardware.