So, I got the code from the bookshelves, and went to input them on the colored tiles in the previous room.
The code should be Red, Blue, Yellow, Red, Green, Yellow, Blue, Red, Green, Purple
But each time I step on the third tile (Yellow), a Metagross battle is triggered, so I never finish the code.
Thank you for pointing that one out to me, I checked in my events and just realised I miscounted 😅 I´ll upload a bugfixed version within the hour. (Also the secret lab is now a little better guarded by the scientist that likes to stare at his poster all day long)