Overall, it's a nice game. And I like the gamepad and fullscreen support.
– Starting a level is quite underwhelming. Most of the screen is black, and you see only very little. Especially for people starting the game for the first time, it might be off-putting. If you get hit, you'll see essentially nothing.
(Perhaps add a mid-layer of 50% grey, or a transition, so there's bad visibility, but at least some visibility? Perhaps the walls could be seen in the grey circular area, but not enemies.)
– I'd play the "wind" noise only when the player is actually pretty close (that way, it could also warn you about enemies)
– Being hit teleports you back to a safe zone. Sometimes this can be confusing (especially if you can't see well). I'd honestly prefer temporary invincibility instead.
– Using items to help you is a great idea. E.g. the gas canister in one of the levels. The first time, I thought it's only meant to illuminate the level (and waited too long, until it extinguished itself), but it actually protects you. It probably should have some sort of timer onscreen when you activate it.
I understand limited visibility is an important part of this game, but I feel the game was sometimes tedious – e.g. in every level until you find the first two or so matches. And being reduced to almost-death means you have almost no time to react to incoming enemies, so you'll probably die anyway.
Anyway, those are my two cents. I definitely liked it, though, for the most part.