some hints with what i struggled with most because the only walkthroughs i could find were of the steam version:
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1. this game may take some googling to decode, such as binary or braille.
2. for the numerals, look closely at the barcode
3. sometimes, you have to do what comes naturally/feels most obvious
4. i was given/could not find any hints for the satanic ending, so basically you have to make a star but with just the acute points, so at the top row, do a dot in the middle, then on the left and right rows, do a dot, both two dots down. and at the bottom row do two dots, each just one dot from the left and right.
sorry if i wasn't very clear. there is an old tutorial by z baylis0 in the comments, very far down, if you need.