Recreate the Experiments of the Scientist Jean Paul Gasse'...
Now that you have obtained your own Seaman egg, use the faithful recreation of Dr. Gasse's laboratory to follow in his footsteps, uncovering the secrets of the Seaman. When the Seaman egg hatches, the adventure begins...

Solve Gasse's Puzzles and Set Seaman Free
Seaman watches you from inside the TV. He reacts to your voice and understands all that you say. Seaman loves a good conversation. His wisecracks and salty wisdom will make you laugh. Share your life with the captive Seaman and take good care of him. If you neglect him, you'll get an earful of attitude. Encourage his growth and evolution, and solve the puzzles hidden in the vivarium to release Seaman to dry land, and to his ultimate destiny...

Seaman: Myth? Magic? or Fact...
Finally, after five years in development, all mysteries are revealed. The legendary Seaman creature has arrived on Sega Dreamcast!