Use the arrow keys to guide the whale. Left-right and up-down work as expected. Press F and B to swim towards the front or the back. Press K to shift between keyboard and mouse control mode. Press T to turn off the twisting behavior (it's fun but a little glitchy). Press G to turn on glass effect. Press space to shoot lasers.
I changed the buttons that you go forward and backward with and you can shoot lasers by pressing the space bar. Thanks ivan321.
