It took me a while to understand the scaling mechanics, and think the game was too short, even for a game jam.

Scaling mechanic takes some getting used to, but escape puzzle rooms like this are a good idea. I got out of the room through the slit after becoming small but end up in an endless loading loop. Overall, good concept demo.

I think that your scaling mechanic is interesting, but it was very difficult to figure out how to make it work. Also, when entering the other room (when tiny), I fell through the floor and was unable to play the rest of the game.