I found several bugs :P (Can't send gif of the another one, too big)
Anyway. That's a really decent game :D It does keep similiar atmosphere to Portal series and that's a really good achievement. There are many ways to bug the game, but it's understandable as some mechanics (grabbing crate) are not that easy to program, so that's fine.
I really enjoy music and artstyle. Not sure if I can criticise it in any way.
Design and theme are really well caught, so it's also hard to get any problems. I would just suggest to make dialogs appear entirely after second click, as it's a bit frustrating when you have to go through all the dialogs again waiting for them to finish.
Great job ;)