Maybe the the score starts at 10 and the carpet is fully untransparent. When colliding with an evil genie, the carpet gets a bit more transparent and the score decreases by 1 point.
At a score of 1, the carpet should start to blink. At a score of 0, the carpet should disappear, everything stops scrolling a huge evil genie appears in the middle, hovering, laughing horribly.
When colliding with good genies, the score increases by 1 point.
Maybe the the score starts at 10 and the carpet is fully untransparent. When colliding with an evil genie, the carpet gets a bit more transparent and the score decreases by 1 point. At a score of 1, the carpet should start to blink. At a score of 0, the carpet should disappear, everything stops scrolling a huge evil genie appears in the middle, hovering, laughing horribly.
When colliding with good genies, the score increases by 1 point.