I love this. I really like how you manage to keep the gameplay new and innovative. I say that because you still manage to add new elements without removing the old one (except total invulnerability). I like how you reused the old levels with a new touch in it, how you keep up the suspense with mother and father. I like the character of the sister and I really enjoyed the puzzle you had to think with the two of them. How rob is weak to light and sister to water and how you must find your way through all this. I liked the voices, the graphic filters, the graphic of the sister who was humanoïd but only outlined to fit the general feeling. Ho, and the music rocks.
Everything is perfect and ...ho? what? Already finished? But..but... I've just got sister and it was so much fun! I was expecting more puzzles than that!
So yeah, the game is too short I feel, probably compared to the first. The end did not displeased me and brings a lot of ideas of what could be the next episode. However, I'd like to tell you that right when I returned into the old cave, I was expecting an ending where you would have to choose between father or mother. And later, when I found sister, I told myself that it would be a 3 way ending : alone with your sister, with your father or with your mother. It seems you have other plans and I can't wait to see them but I wanted to share anyway.
Excellent game, I reaaallly enjoyed my 30 minutes of gameplay and I thank for making and sharing this.