scraph

>Feel yourself up, maybe you can at least discover what your body is, if not what you identify as.

If I'm squinting correctly, our protagonist appears to be both, now that I've given it another look. That also fits with their pronoun preference*.
(nsfw)

SpoilerShow

_{*not saying gender identity has to match body or whatever, but it does tend to, and it would make sense in this case}

ANYWAY:
Looks like most of the buttons only work in combinations with other buttons.

Try activating purple, then pressing blue or green.

I've started a (rather pitiful) spreadsheet for this. Somebody more awake than I am (future me, perhaps) can make a proper input/output table


Edit: Future me has done their job, and the truth table is fully updated with all tested values so far.