A basic mining game. Graphics are ok, gameplay ok but a bit boring. You should have an animation for the miner mining.
First playthrough I got stuck because I didn't realize I had to upgrade my suit first. So I spent my money on other upgrades, ran out of money and coudln't get the third key.
Restarted the game. This time I ran out of energy but somehow ended up inside a block. No way to get back to the shop so a game ending bug.
Get these issues solved and add a save function, then you will have a decent game.