Hey! Nice idea, i think that this has some nice features that can be developed further. I like that I can just accumulate money while standing still as well :p .
Maybe next feature could be that i can buy other things as well like a maybe multiplier when i get on a money field or a shield for when i get on a bad field.
Currently Its very its a bit too random what happens too me, especially in the beginning.
Great effort, and good job!