Hey, my last minute name was "Greed for Gems", pretty close, huh?

I liked mining mechanics and that gems are dropping to the ground and are not collected automatically when you mine.

Sound was laggy though, and platformer engine is not very smooth.

As pointed out, the platformer engine is not smooth, and the controls are... well, not great. But if you get past this little things, you have a pretty deep game with great mechanics that really deserve to get a try. I personally loved it, it's fun and pretty much complete as a whole. You and your game, sir, deserve more votes and comments! I'd love to see this concept extended :) (I'll admit I have a kink for mining game with resource management)

Some ideas to make the game even cooler:
* metrics system to see how deep we are (or some other stats)
* unified treasure/gems system, so i can buy whatever I want
* infinite (or at least larger) map ?
* went to the bottom, but there were nothing special. an end game would be cool but I suppose you ran out of time
* upgrades

Nice game)))))

Good game! Played about half of hour.

Terribly laggy for me.