Nice looking platformer game.
Some remarks:
The jump is insane in height but lacking in distance, felt hard to control this way.
At the start it is explained that your solder drowns in water, but throught the water is the only way. It took me some running around before I hit the water on accident (expecting to drown) but it turned out you can just pass over the water. This was not clear from the explanation.
Overall good job !