The Terrifying Ship of Terror was one of five Flash games located on the original Sly Cooper and the Thievius Raccoonus website. In the game, the player takes control of Murray as he makes his way through Raleigh's boat.
The goal of the game is to obtain the treasure located in the ship's "chamber of horrors." The treasure is on one end of a balance scale. This end must be raised up in order to have the treasure within reach. To do this, the player must get Murray heavy enough by consuming ten food items found throughout the game. Once done, Murray can jump on the other side of the scale, tip the balance in his favor and grab the treasure. Obtaining the treasure is not required to complete the game, but without it, the player cannot access the hacking game.
The player begins with three lives and has a time limit of 4:18 to complete the game. Along the way, they must avoid doberman pinscher guards and other hazards. If caught by either of these, the player will lose a life and respawn at a previous location. If the timer reaches zero, the game ends in failure.