It was really hard to get past the levels there was only one level I passed. I really wanted to give up. I think this was one of the worst game I have ever played. I recommend you to not play this game.
It's true, just collecting as many coins as you can is just enjoyable. If only they heightened the coin percentage to gain a new life a little higher, the coin collecting really gives you more lives than you need or want. Probably would have been better if 500-1000 coins gave you a new life, you're collecting that much a stage anyway.