Really fun. This game takes a very creative approch of the confined theme that works very well.
The level design, pattern design and difficulty are incredible and amke the game one of the most fun of the jam. The game is also very juicy.
It would be nice to have more UI for HP left or number of bombs available. The sound design is fine but very loud with aggressive sounds that can be a bit anappealing.
One of the greatest entry.
PS: I really wanted to use a mechanic similar to your evolving terrain. For some reason it makes me think of a mechanic of Will You Snail.