It only does it on good winning combos, thats why I say its all rigged. If the slot are random how is that possible? Every time you see a winning combo that might land for you the slot does this weird thing where it will speed up to make the good combo rush by the screen really fast. I’ve noticed that no matter how much you spend you just will not win. I think they are using server based slots, if you don’t know what that is google it.
