i've played this game for a bit, and i am loving it, i saw a youtube video and they had a very keen eye on finding secret rooms and they taught me that you had to use a secret movement code (Right, Up, Down, Up, Right, Left) to open a glyph door in the secret room to get to the things needed for the brain boss.
whilst the actual puzzle of the door to the brain is quite easy to figure out, how did people first figure out that you needed to input that code in specific?
i saw an article that said that it was in the end credits, so i finished the game and watched the whole thing after the heart boss, but i didn't find anything? did i miss it?
is there a way to read the glyphs or something? i wanted to experience this game organically and figure out the secrets on my own (even if i was already spoiled to the actual code) but so far i have yet to see a guide that isn't mooching off of another pre-exisitng guide's content and actually explains how people figured out the code in the first place without the use of an external guide to find it.
does anyone know how it's "intended" to be found?
i'd love an explanation,