In the tutorial, I believe I got soft locked after finding the three bombs. The ground broke, but there wasn't any instruction to progress. Getting to the actual game, I found the completely RNG bomb placement a bit odd. I was trying to search for connections between the hole color and proximity to other mines, but neither seemed to affect the placement of bombs (however they could be some ways for you to make digging more interesting). I also found it weird that S moves you forwards, being unable to move backwards made turning a bit weird.
Good job tho with the tutorial, it's very simple, but also very interactive. The only thing that confused me was the mines, I'd presumed that I had health and the third mine would kill me, not drop me to the next layer. I also really liked the menu transition, how the shovel digs up the button and then the hole envelops the screen, pretty cool.