This is the third puzzle in the alchemist's lab. Can anyone explain the reasoning? I did the first two easily, but I don't understand the objective of this one.

Will there be other levels? I'm asking this because when you press 'i' you can see all the things that you have collected, there are far too many boxes to fill in with the current amount of levels...so maybe there'll be more?

We reached an ending where Robert appears to be killed by AITMA . Is that the only final outcome?

I don't know if it's just me, but I found the other ones pleasantly easy mostly, whereas this one seemed to be a lot harder. Is that just me, or was that an intentional shift?

I followed the given solution to this puzzle. I am obviously doing something wrong, though I don't know what it is. I tried to follow the walk through in Spanish. But I don't speak the language to understand the explanation of the quick moves that are shown. I am totally stuck and am frustrated. I want to move along....