Another attempt at explaining the mechanics/controls of this game:
If you press the up arrow key, or A, or I, all of the movable balls in the game will move upward if they can. If you press the right arrow key, or D, or L, all of the movable balls in the game will move rightward if they can. (And so on.)
You start with six movable balls. Each carries its own illumination, allowing you to see the nearby stationary walls of the (looping) maze that is the gameboard. However, if a movable ball pushes on one of these walls, the wall will light up and remain lit on an ongoing basis, allowing you to understand and maneuver within the (looping) maze that is the gameboard. A movable ball will not be able to move if a normal wall, lit or unlit, is in its way. And while it is stationary in this way, if a moving movable ball runs into it, it (the stationary ball) will die; the goal of the game is to reduce your movable ball count from six to one in this manner. You are your own enemy.
A complicating factor is that when a movable ball dies, some walls may turn vengeful and deadly, seeking to kill the remaining movable balls. Fortunately, you can see this change (the walls now look like black holes), and also the killer walls remain stationary. (So just don't run into them!) You can also strategize around this mechanic, because walls don't turn deadly at random--it is always all of the walls that were last pushed on by the ball that died.
So, to get the highest score you can on a given one-minute run, you want to kill as much as you possibly can (earning two points per kill), while dying as little as you possibly can (losing one point per death). If you avoid the killer walls entirely, and reduce your ball count to 1, you can get 5 points. If you kill only one ball and then your remaining balls all fall victim to killer walls, your score will be -5 points.