Can you make some sort of guide that covers everything the tutorial doesn't cover?
The intent is that it is mostly pretty opaque and mysterious, drawing from the sense of discovery I enjoyed about games like Digimon World and SA2's Chao Garden.
There's actually a boolean I intentionally hardcoded at the end that flips the game into displaying in english, as it was developed to display all numbers in base 8 and all text in Lintwese! I figured that was maybe a little rough on people so I added a small tutorial and changed it back to english.
If you're looking for specific answers or how-tos, though, feel free to ask here and I'll provide instruction as best I can; I'm happy to do write ups on specific features or items if they're perhaps being a little more puzzling than intended!