Virtual-On Oratorio Tangram is an action-adventure game set on a futuristic cruise ship called the Oratorio . The story follows the captain, Akira Yuki, and his crew as they try to uncover the truth behind a mysterious force that's causing chaos on board.
The gameplay of Virtual-On Oratorio Tangram is fast-paced and action-packed. Players control Virtual-On robots, known as "Units", which are used for combat and exploration. The game features a unique blend of shooting and mecha-style combat, with the Units' abilities and strengths making each one unique.
Virtual-On Oratorio Tangram was released on the Sega Dreamcast in June 2000.