Hey, another doodle jump game! :) Although yours is much more polished than mine.
I managed to get to the first shop and bought a bigger collection radius for 200 coins. Then, my character went super heavy (?) and I started to push every single platform down and my jumpheight was halfed. I don't know if I missed something, but I guess, this was a bug that increased gravity?
I liked the overall look and feel of the game, and it did fit the theme. Well done!
Maybe you want to check out my doodle jumper, too?