I looked at your stream and saw you talk about a enemy in the game I haven't seen so I looked for as many secrets as I could here's what I found: Two bonus hearts, the thing when you go back to the start (a few times), and what's below (sorry about it glitching in the screen shot didn't notice it till later) but I still haven't found where those enemies are so can I get a hint?
Sorry if it's a bit underwhelming ^^ It was just supposed to be a little extra thing to do on the side for players who already played through the game.
Hu is the greeting people use on our discord server (it originated from someone mistyping "hi" and became a thing from there) Just a little easter egg... Or maybe more is hidden by it? Who knows o.o