"so, i proved statistically that without use of mouse button you will actually travel further - zero skills, just upgrades and grind - no, thanks, 3/5"
You proved it... statistically? How do we know you're not just terrible at knowing when and how to use your rolling dash ability?
Way too few/inexpensive upgrades. The difference between the fourth and the fifth is humongous. I didn't even dig one single diamond, and I didn't "grind" ores at all. Anyway love the gameplay, just wish there were more of it.
 "Building Rush"){kind=icon}
 "Kick The Critter"){kind=icon}
 "Snail"){kind=icon}
 "ELEPHANT RAVE"){kind=icon}
 "Dangerous adventure"){kind=icon}
 "Pixelo"){kind=icon}
 "Search for games & more"){kind=icon}
 "Pike Club 2"){kind=icon}
 "ShellShock Live 2"){kind=icon}
 "Utopian Mining"){kind=icon}
 "Badge Master"){kind=icon}
 "Turbo Golf"){kind=icon}
 "Deadly Neighbors 2"){kind=icon}
That's great idea. :)