Ok, yeah, I see what you mean, I think the problem is when the stack is landing and you crash the next pixel into the ceiling, which actually crashes the "invisible engine". Anyway, I admit this is a bit confusing, so I will need to fix this in one way or the other, probably just end the game as soon as you crash and stop the stack landing and leave it standing there as well, no more score.
 "AdVenture Capitalist"){kind=icon}
 "Dead Pixel: The Game"){kind=icon}
Hee hee hee...