I've played for a while now. On level 11,116 and I can say for certain, this is the most insanely rigged game ever, keep saying I am going to uninstall it. I have not spent a dime to this point, however, it is absolutely set up for people to fall into the trap. I've had as much as 7 mil credits to almost zero, several times. They say it's a fair game, but played a week ago and for 36 hrs could do no wrong; winning levels with no boosters, now lucky to win on first try. AVOID THIS BS GAME!!