Yeah I should've made that more obvious. There is actually a system to it. Basically, when you hit something you trigger a method that uses your earnings to give you back health at a rate of 15$ per one thing of health. However if you hit something with earnings below 15, it wouldn't do anything because it was below a one health heal.

Also you'd lose 3 lives per collision.

Thinking about it now a visual way of putting that in would helped to make it more understandable, rather than just an audio cue.

Thanks for the feedback!