Thank you for playing. I'm happy that now I know someone made it to the end even without hints. You are smart!
Also thank you for telling me, that the player can get the game into an unfinishable state, which is something I tried really hard to avoid.
That's why I playtested the game many times and added for example the one extra white skull to the far right end where the stag with red antlers is, and an extra pedestal that opens the green portal next to the dragon from the other side.
I'll fix this edge case after the jam voting ends when I'll be allowed to push updates. I also plan to add a custom cursor, that changes its appearance when points to something interactable.