Use the arrow keys to guide the whale. Left-right and up-down work as expected. Press A and Z 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).
Thanks ivan321! I added a fish to the mouse pointer effect. (it's hard for me to explain it, but it's pretty funny to me :)
