I found an impossible level to complete because the ball disappears before it can hit the brick below. I tried to aim for that. If you want those levels to be completed, then losing the ball would have to go completely out of bounds at the bottom. The N powerup, the nitro-ball actually pushed the level downward, which explains the ball being lost before hitting the bottom.
Either have the bottom most bricks destroyed by the nitro wrecking ball effect or have the ball be lost from reaching the bottom of the screen past the UI elements.
