Super fun to play through this, great work on your entry!!
I really enjoyed all of the gameplay, the mini-games were fun/satisfying to complete and the crab phases were super fun too. I enjoyed the upgrade system and gameplay loop, it all came together really well :D
The art is awesome! Great work on that :)
A few of the SFX got a little annoying but most notably the digging sound effect.
Maybe a little variety on the sound effect (an array of a few variations) and some variable pitch/volume could help out with that.
Other than that this was really fun, I had a great time, good job! :D