You have to click on the little dot to begin the game, but you don't have to hold your finger down on your mouse (or trackpad), you only have to drag it. Also, if you touch any walls or any of the red, the game is over. The game also ends when the score hits 0.
This game was made to show people that disabled people in wheelchairs can't go all around the place. For example, there are stairs which you can't go down, because you're in a wheelchair. Thanks for playing, and enjoy the game.