Really interesting concept! The platforming could definitely use a little better feel. Variable jump height is important, as well as a little bit of acceleration to allow the player to make fine adjustments to their position. Coyote time might help a bit too. I appreciate the position of the camera being kept so far above the character considering you're moving up for pretty much the whole game, but I think it would have been nice to have the ability to pan the camera down a bit if you held down. If you need to go back down at all, it feels very claustrophobic with how little you can see. I also think I would have preferred for the enemies to simply kill you and send you back to a checkpoint, the knockback doesn't feel great, especially when paired with a moment of helplessness while you watch your progress wash away. And I wish there wasn't a short cooldown every time you move a slide puzzle piece preventing you from moving it again for a short time, or maybe if it could just buffer your inputs or something. When you're only moving around the indicator, there is no cooldown and it feels great, but once you pick up a piece the cooldown makes it feel sluggish. I loved the art style, and the music was fantastic! I was able to understand pretty much immediately what was going on with the slide puzzles, I think the main menu screen helped prepare me for that really well. I also really appreciated that the camera would move to bring the slide puzzles in focus and allow you to better see where you were trying to get to. Great job!