Just played v1.0 and I have a bit of feedback. First of all, I love the art of the game, the pixel style works very well, especially with the animated fire and water, the only thing I'd tweak is that the player animations move in opposite directions to the way the player is facing and I'd love to see some kind of background, fo example the interiior of a castle or cave as the overall gameplay is giving me Castlevania vibes. When it comes to the camera I found it a little jarring when it snapped forwards, especially while trying to jump over the water. A camera that smoothly lerps to the player's position would feel a lot nicer. Finally, the bursting pipes feel a little too unpredictable, making it hard to, and almost frustrating, to jump across. Maybe having them on a timer would give the player a better chance of moving on to the next area.
Overall great job and keep up the good work!