Fun little platformer, I think making the corruption puddles damage you when you hit them might be a fun idea, since there's not really any danger outside of the boss fight.
But I also like the barriers that you need to be empowered to break through, can make a fun little time trial where you might have to optimize a route to reach a door before the empower runs out. Just spit balling ideas.
Lastly, I ran into some issues with the wall sliding colliders, where sometimes I would snag a wall and get stuck in the wall sliding state, causing me to lose control and plummet. Might just be a skill issue on my part, or it could be worth looking into.
Great work from the team, and thank you for sharing the game with the community!