The main mechanic of the game is that the player is able to raise or lower the water level in certain areas of the ship. This will offer them a new route through the ship and is needed to reach the end point of the game.
Throughout the game, the player encounters multiple locked doors that they need to open to continue their way through the ship. The player needs to find an alternative route to obtain the key before coming back and proceed through the level.
Crates are placed in some areas of the level. These crates can be pushed around by the player to open new paths or unlock other things in the level space.