This was really cool, I liked the digging mechanic and saving the animals was nice! I thought it was a cute game and then hearing of the various animals' tragedies was super sad and hit hard. I really liked how saving an animal added speed to the water gun, it made it very rewarding for finding them.
I wasn't really sure what the yellow and purple dot blocks were for, they seemed interesting but they might've just been landmarks. It could be interesting to have different block types and environments for each animal, maybe an upgrade for the water gun to break through stronger blocks or some levitation upgrade.