What a nice game.
The pixel art looks great, with just a good palette and just a bit of shading that adds depth. Caring for yourself and your little sister was a nice mechanic, trying to think both of moving forward and being careful.
The fact you can deflect bullets added a lot to it too, I think! Just looks very satisfying.
The Final Battle is a bit hard, considering you go forward just a little bit for each attack and it becomes a bit too easy to just step into its hitbox. But understanding you can just deflect the bullets made the fight a lot better.
Awesome entry!