The atmosphere, music, style etc all are A+. I could not wait to play, and enjoyed the first half of the game.
Now for the bad. The game eats inputs. For a platforming game that eats your jump inputs when holding right half the time is unacceptable and becomes completely unplayable towards the end of the game when timing multiple jumps becomes necessary to complete the level. For the first half missing a jump isnt the end of the world, but still can be frustrating.
Second major issue is hitbox detection. Getting hit by things not touching your characters image, being able to stand half into spinning saws without being hurt, falling through platforms that you jump on, or even taking spike damage from the top edge of the platform, but not the spike part you can jump off of...
Third some of the abilities/moves not intuitive. The game also does not say a controller is recommended. I would argue its STRONGLY recommended. I may purchase on psn to see if using a controller solves this. Now doing a high jump involves running, releasing ALL keys, then pushing jump, but only if Rayne is sliding, if she just comes to a stop she will only do a regular jump. This mechanic is balls.
Lastly, I love the concept, music and its fun once you get used to the controls even on keyboard. It pains me to not recommend the game, but with the game eating your jump command, and it being necessary to do many timed jumps in succession to complete some levels, I just cant in good faith tell people to pay money for this. If they patch the game I could see this being a thumbs up, 9/10 or 10/10 Please buy now review.