Nice game, but I have some criticism. I'll start with the positives:
I had fun trying to dodge all the obstacles with the limited movement options, the theme is incorporated in an extremely original way, the music is catchy and the visuals are very good, even if it's just 2 colors, they really fir the theme. The boss is very original!
Now, the criticism:
The attacks seem pretty random and there isn't a real way to dodge all of them consistently: I often found myself in situations where it was impossible to dodge all obstacles (mines above and below, missiles coming from the sides, and even if I dodged all of them, a piston would've crushed me). Really gives a "world against you" feel but maybe it's a bit too much sometimes.
The dash is a bit strange: I noticed it is less of a "dash" and more like a "momentary speed boost"? Great to dodge incoming fast obstacles, but the increased velocity could mess up a precision movement right after.
The main strategy I found most effective was that of going up and down and praying there were no mines when going up or down from the bottom or top.
As for suggestions, maybe I would've liked a way to parry/shield some of the incoming attacks? I don't know if it would make sense, but a bit more agency would've been a nice addition.
With this, I hope these observations could be useful if you want to update the game! It seems really cool and an amazingly original concept overall! :D