A neutron walks into a bar and orders a drink. The bartender promptly serves up the drink. "How much will that be?" asks the neutron. "For you?" replies the bartender, "No charge."
Whatever you do, you must not press the red button.
Don't hit the walls, or you'll sink!
Because being chased by ghosts is way too hard.
Press and hold the button for a long as you can endure. You might even get on the leaderboard!