The idea sounds intriguing, and I thought I understood that the numbers corresponded with the position of the letters in the alphabet, but the tutorial said something about words and ... I honestly have no idea how to solve the second part of the puzzle. I tried all numbers, nothing worked, and I dont even know what the correct answers are supposed to be.
Viewing post in Confusing Crossword Game jam comments
so yeah, the tutorial does have the answer at the end.
The solution here is written in base64:
MS4gbG92KDUpLCAKMi4gZigxKWxsIAozLiBsKDkpbig1KQo0LiByKDgpCjUuIGZyKDApCjYuIDEoOCk=
You can use this website to decode the answer, if the video is not enough. Thanks for playing!