I really enjoyed this game in terms of gameplay, I found the abilities cooldowns and rythms to be carefully designed to enable a nice game flow that is not too slow but also not too fast.
I like the enemy designs but would have wished for more variety like a third enemy type perhaps. But the enemies we have in the game are very good I especially like the base melee enemies as they are not just canon fodder all because of their movement. Their attacks send them forward and force you to turn to the side and adjust your aim, they do not just attack you from the front and stay there, this detail makes the replayability better imo, so very well done!
I found the intro to be nice and moody, since we walk a long time and get to experience the surroundings and vibe. But later on I would have wished for shorter corridors.
Sadly I think the parasite theme is just in the name only as characters talk about it. there could have been done more on that end but the gameplay more than makes up for that! Also one laste detail for me the protagonist voice sounds a little like justin roiland haha. Anyway good job on the game!