Really good!
I think the score and time not properly being implemented is to this games detriment when the focus is arcade-like but the visuals and concept are pretty inventive and the music is great too!
I didn't really see myself getting any powerups from the rocks or anything so I don't know if theres much of a point to mining them, there was a scenario where I got stuck on a singular trap block surrounded by spikes and I don't believe there was much of a way out.
Still, really cute, really fun, would love to see it worked on further and polished.
Could work as a rhythm game, honestly.