The concept of this is really cool. I like the idea of you fighting against humanity, making it seem like the player is the enemy. I guess it also covers the theme of control as the humans are trying to get back control, I think. I love the art style and the industrial style music, it really fits well with your game. Only thing I would say is maybe add a little bit more gameplay depth (I understand though as to why you probably couldn't, due to having only 72 hrs). This could be making it so the tile attack you just used will be used up (maybe after like 1-3 uses) and go to another random tile, or maybe your own attacks (e.g. the lingering fire) can damage the player too. Overall, Amazing game and I had a lot of fun playing it! Keep it up!
Also, if you have time, I would greatly appreciate a rating and/or feedback on my game too.