Felvidek - Weird secrets and bad endings

In Felvidek, comedy and horror meet in a JRPG dark-fantasy 15th-century Slovakia, with a peculiar art-style full of great animations and personality (similarly to Hylics). Fight a cult where every choice could be deadly.
Check the following video to discover many secrets and interactions, from how to fight the final boss at the beginning of the game to the secret creature inside the well.
Felvidek was developed by Jozef Pavelka and it is available here: store.steampow...
For other dark and horror RPGs, follow my STEAM curator page "Dark Strategy Games":
store.steampow...

[@Sonoidus]

I don't think these are secrets, seems more like just things you can stumble across.
Also you didn't include the best secret of them all. The one with funny sprites, at the endgame. Won't spoil much, but it's related to anime.

[@metzillixochitl]

what is it?

[@Sonoidus]

@@metzillixochitl there's a secret room somewhere near the ending fight (forgor) that basically takes you to a location with default RPG Maker sprites. The main character also gains anime eyes

[@somethinginventive153]

The interloper in question: