From LEGO Batman Wiki
In some screenshots of the video game, Aquaman has Bruce Wayne's hairpiece in tan and a different body which has a muscular print with scales in the same manner of Killer Croc to show its cut against his body with a different yellow belt above his hips with the symbol of Atlantis.
Even though he has nougat lines on his face to give it shape in the game are similar to his minifigure, they aren't visible on his character token or on Martian Manhunter's console where he has his preliminary face instead.
In LEGO Batman 2: DC Super Heroes, Aquaman can shoot water from his trident, dive underwater, and has super strength.
Arthur Curry was the son of a lighthouse keeper and his wife who was a banished queen from Atlantis. The Atlantean physiology inherited from his mother granted Arthur super strength and endurance, amazing speed swimming, the ability to breathe under water, and a telepathic connection with undersea life.
When the King of Atlantis passed away, Arthur was granted the throne. He vowed to protect both the surface and subterranean worlds as Aquaman.
The trident he wields, a gift given to him by the Greek god Poseidon, gives him powers such as the abilities to conjure water out of thin air and manipulate it, command the seas, and create tidal waves, whirlpools, and columns of water to stand on, control the weather, unleash blasts of lighting, and turn living things into something else.
His rogues gallery includes archenemies Black Manta and Ocean Master.
In LEGO Batman 2: DC Super Heroes
In LEGO Batman 2: DC Super Heroes, Aquaman is a member of the Justice League and is one of the heroes being monitored by The Martian Manhunter. He can be unlocked after the player collects 70 Gold Bricks and builds a gold door. He costs 100,000 studs on the portable version.