The Shark is a fearsome predator that strikes terror into the hearts of men. It attacks without warning, inflicts massive damage on its prey and disappears just as swiftly.
At least, that's how they should be. Unfortunately, these creatures are overshadowed by the alien invasion, which relegates the Shark to the position of "weakest enemy". Either because they are so weak in comparison, or the aliens' possible aversion to water, or because of a simple oversight, the Shark has not been recruited into the alien ranks. The Shark is the only creature in the game that is not in league with the alien invasion, and will attack Duke Nukem just because it wants to.
Note: The values given for the Shotgun and the explosive weapons are minimum values only.
The Shark poses very little threat to the player. They have very low health, and can attack only by means of a weak bite. It is also slow-moving, and will usually not chase the player at all. It is just as easy to swim past even a shiver of Sharks as to shoot them.
The Laser Tripbomb is described as a bad weapon to use because pools of water containing Sharks are often too big to effectively deploy the weapon.