Really nice one !
I might have encountered a bug: I don't think I've chosen the time stop, but at least twice i've got it enabled.
Wish list:
- better marking of the destruction zone
- I agree the difficulty is a bit too high, and I was hoping destroying the walls would help getting further, but still get submerged pretty easily.
- one could be interested to see how fast enemies get stronger, that would help getting an idea how far we are in the game