Cool puzzle game. Many of the levels were dependent on random chance and movement.  Some levels I would not complete cause the crabs went off the page. I did pick up on predicting the movement though which was fulfilling!

All levels cleared. That was a fun experience. Sometimes you just have to keep restarting until you get the crabs in desirable spots. Simple mechanics executed well. Good work!

Very fun game! Finished all levels and it is so satisfying to trap the crabs in the corner of the map

I ran into a bug where part part of the beach was outside my screen, could not collect the last crab on lvl 4.  I also felt like it was a bit random if the crabs moved to a place where i could catch them or not. I like the consept though. I think it could be fun coming up with stratiges to trap the crabs if they was a bit smarter. Like the music and sound effects. Here is a video of me playing: 

This is probably my favourite game of the jam so far, really nice idea!

I was a bit confused by the max digs counter, it would sometimes increase mid level, is this a big?

I also found out that you could dig and undo an unlimited number of times to sort of herd the crabs to where you need them, perhaps the crabs should go back to their last position each time you undo.

Its a nice idea, and also the progrssion with thje pools. I got the feeling that if the crab spawns too far it is imposible to get it, maybe adding a "maximum spanwn distance" or something like that, I don't know.
congrats!