I ABSOLUTELY love this game.... it's really nicely designed got great atmosphere/graphics that perfectly fit the mood, a lot of backtracking with great opening up of the areas once you have new abilities. Not finished yet, but fully intend to come back to this one, and get past those silly blue eyebally things firing all their rays at me!
The negatives are all very minor, but minor annoyances were that - the jumping initially felt like it could be a little more responsive/use some coyote time, but I noticed it less, and less... the floaty enemies got stuck and their hit boxes to do you damage felt a bit bigger than was intuitive (but again I noticed this less and less playing the game).. Also I found myself in the bulkhead area teleported to the low exit area on getting injured (think this is a bug rather than I accidentally hit some form of intentional teleport I didn't notice?). A little more feed back (say an unlocking whirl or other indication when you unlock the doors, might help a tiny bit, to know when you are done with an area... However none of this detracted from my overall enjoyment (as I mentioned, I really REALLY loved this game)
Great Job!