Use W or S to decrease speed on a level. You can also use up and down arrows instead. The higher speed you are going, the more gas you will use. Losing all your gas will make you lose. Bumping into a rock will make you lose also.
Has saving of points and upgrades. Harpoons: Every 5 points into this, you get another harpoon. The higher this is, the better of a chance this has to break rocks. Strength: Higher this is, the higher chance you have to break a rock when you crash into it. Gas Tank: Increases your starting gas by how much you upgraded.
