In Jaws: Unleashed, the player assumes the role of the shark.
The shark first enters the island from the southern end and the player finds itself in a cove.
The cove has tutorials to allow the player to become familiar with the controls, such as the ones for moving the shark and attacking other creatures.
The shark has a menu for upgrades as well.
These can be accessed from either the main menu or the pause menu.
Upgrade points are earned by causing destruction around Amity Island, completing levels, and/or collecting bonus items, the most frequently found of which being treasure chests.
There are numerous upgrade criteria to choose from. Players can choose to upgrade the shark's power, speed, hunger, health, or accuracy.
During gameplay, there is a HUD in the lower-right corner of the screen. This HUD has four meters and a sonar that informs players of the positions of important objects, prey, and enemies.
The two parallel meters above the sonar are for Jaws' health, and hunger. As Jaws becomes hungry, its health will diminish, forcing the player to "eat" constantly.
The health bar will also diminish as Jaws takes damage. The last two meters are used to charge the shark's tail-whip and head-butt attacks.
The more each meter fills, the stronger the attack is.
The meters are on the left quadrant of the sonar, running along the arc with the head-butt meter on the outside and the tail-whip meter on the inside.
The head-butt meter is orange when charging, flashing when fully charged, and is the same as the tail-whip meter, but it is purple instead of orange. Jaws has unique attacks in its arsenal.
The shark can ram objects with its snout, whip others with its caudal tail, bite, and when the player earns enough points to upgrade Jaws' abilities, new attacks become unlocked, such as the corkscrew and the body bomb.
To perform a corkscrew attack, the player must charge up the head-butt meter and tail-whip meter; head-butt first, then release the tail-whip button and the shark will spin around, causing damage to anything caught in its wake.
To perform a body-bomb, they simply charge the head-butt meter, point the shark upward, release the movement button and the shark will fly up in the air, and smash back down.
30 years after the events of the first film, Amity Island is growing, making corporate connections with prestigious companies like Environplus to improve the island's economy.
The increased population around the island and industrial activity has also attracted Earth's most fearsome creature and the game's main character: Jaws, an enormous great white shark.
When the son of Environplus CEO Steven Shaw is eaten by the ferocious beast, Shaw hires renowned shark hunter Cruz Raddock to track down and kill the shark.
Meanwhile, marine biologist Michael Brody tries to capture the shark for research. Players are introduced to the controls and abilities of Jaws in a tutorial, where the player kills several divers, learns to attack swimmers at a beach, and must destroy a set of docks.
Brody shows up at this point, captures Jaws, and transports him to Amity's marine theme park, similar to SeaWorld.
Jaws is put in a holding tank, where Brody, Vaughn, and Shaw argue about what to do with the shark. Shaw wants Jaws to be killed, as he killed his son and is endangering the beaches, whereas Mayor Vaughn wants to put the shark on display for tourists.
After they leave, Jaws escapes from his holding tank and destroys the waterpark. In one of the exhibit tanks, Jaws kills the resident Orca. After this, the player is free to roam.
Brody tells the Mayor that his research has discovered that the subsonic frequencies emitted by Environplus's Seaseeker submarines are causing the sharks around Amity to become more aggressive and attack humans.
The mayor brushes off Brody's complaint and decides to have the machines stay.
