In terms of gameplay this was very very basic, which isn't a bad thing! You took the very limited game mechanics and gave the player a unique way to deal with enemies by giving the player unique platforming designed per enemy.
I would love to see you pursue new mechanics and some more sound effects next time around.
I love your take on the theme, it's actually very similar to ours in Spiral. The idea of the game and story being the calm before the storm in lieu of incorporating it into gameplay.