Lots of ways to make credits: check
Actually works: check
Has cheaters: check
I got 90 credits in a few minutes, then spent all 90 getting YouTube subs, for EVERY SINGLE ONE to unsubscribe. I am rather disappointed by this, considering I then got 200 credits, spent them all, and everyone unsubbed. They really need to work on their anti-cheat, and I ran an experiment. The "report user" feature does nothing at all. Not very good. Up your game, NOW.