It's a great game! It's highly underappreciated!
Nice music, good sound effects, simple yet charming graphics...
Simple, addicting and challenging!
Also one thing that I ask to add in about the coins... You could accumulate to buy different suits or upgrades on a shop...
And also there are too many pickups per level, by the end of 2-3 I had 50 HP one time. I know you want to make sure that we stay alive to see things but don't make it like child's play...