Nice game!
But I have one major issue with it: Very fast moving platforms and jumps you have to do that are outside of the camera. This was very frustrating in combination. This way a lot of jumps were very hard and always a shot in the dark. Either let the camera follow the player or do these jumps on the actual camera screen but I saw in the other comment that this was already implemented but broke.
And just a little logical error: If you press x right at the start of the game you have the tool animation before even collecting it. I thought there was a bug with attacking because the monster did not die and I moved on. But after collecting the tool I realized it was working. Maybe you should remove the animation at the start and add a prompt like: "I need a tool to attack" when you don't have the tool at the start and press x to remove the confusion.
But all in all a very nice game, nice level design with lots of features already implemented. Good job!