Monster Turtle is giant reptilian leviathan with a spiky shell, and claw webbed feet. He is very old, very heavy, and very smart. He is a brick built monster from the Lego Atlantis theme. He is seen battling a diver. His first attack is squeezing the life out of its prey. His secondary attack is waiting for the right moment to bite and doesn't let go. Since he is cold blooded, he is very slow and unable to adapt to sudden changes in the temperature.
- This is the only January 2010 Lego Set that didn't appear in Lego Atlantis: The Movie.
|Dark Guardians||Giant Scorpion | Giant Shark | Squiddy | Sea Serpent | Giant Crab | Monster Crab | Monster Turtle | Grey Shark | Octopus | Piranha|
|Warriors:||Manta Warrior | Shark Warrior | Squid Warrior | Naga Warrior | Hammerhead Warrior | Barracuda Warrior | Lobster Warrior|
|With Names:||Manny (Manta) | Billy (Squid)|