Really interesting concept that works really well. Loved the idea.

Really, really great gameplay concept here, and it definitely fit the limitation. I will say that, after respawning a few times, knowing the pathways from before kinda reduced the need to shoot bullets to find my way. If you decided to iterate on this concept, I think randomly generated levels would be a way to go to avoid that. Music and sounds were really great, and the atmosphere was perfect. Sometimes simple art is the way to go, and you nailed it here. Awesome work!

Well done on the use of the limitation, adding a bouncing SFX would make the game feel even better! 

COOL!

Such a unique premise and well executed. I found it was challenging but definitely possible with a few tries, and definitely keeps you on the edge of your seat. The in-game text, the ripples, the black on black were all very satisfying aesthetically, and I appreciated that it was tuned so that shooting directly into a wall your standing next to doesn't kill you. It made me tune my strategy to try to shoot at acute angles relative to the wall I was walking parallel to.

I found the best way to play was moving through meditatively and cautiously since the environment was unforgiving. I wonder how this game would feel with a limited amount of health and some kind of time pressure (not sure if it'd be what you're going for, but I just think it'd be an interesting twist)

Very unique and interesting concept!

Players have to make more enemies themselves in order to move on...

I think the theme and limitations were fairly well expressed.

very cool concept! I really like the idea of using projectiles as a sort of "echolocation" thingy to navigate the map. Very unique and well-designed game!