Very creative and brain-wracking puzzle design, and it's wild that you got the game looking so good in such a short time as a solo dev! Use of the hourglasses to freeze environmental obstacles was also a really interesting game mechanic that I haven't seen from any other puzzlers so far. Especially liked solution of level 6. Only major qualm is that using the one-sided hourglasses is very frustrating - if you hit them on accident or when you're experimenting with the level, there's no way to reset them, which can be frustrating especially on longer levels like the final stage.