Atlantean (Serious Sam)

The Atlanteans are a race of bipedal fish-like lifeforms native to the lost city of Atlantis.

Overview
As the name suggests, the Atlanteans are native to the lost city of Atlantis. They stand approximately 7ft tall and have developed the technology to develop plasma weapons and prosthetic propellers, the latter of which is used by the Depthlurker variant of their species.

Despite their efforts to resist, the Atlanteans were conquered by Mental, who brainwashed them into servitude and absorbed them into his army.