Good endless game! I played the game only once and achieved 516 m. The stones are a good idea and the game mechanics are generally well made. The music is quite good. I only know about a small problem - I played Bitty Dig once and liked it. But I think that if I played it more times, I would quickly get bored. Next time, I'd recommend you to make the game either finite, or adding some motivation for the player to continue playing, for example collecting trophies after some depth achieved. Well done, anyways!