While most locked doors in games can only be opened with keys or by destroying them, there is a more secret method of opening certain doors in Tunic.
TUNIC / How to open sealed silver doors and gold blocks / VERY EASY
As you travel through the world of Tunic, you will inevitably come across doors that seem to be both impossible to open and destroy. While you might think there's some sort of item you need to get to open these, in reality there's nothing stopping you from doing it right away, if you know how.
Each sealed door has a pattern on it. If you "draw" this pattern with your D-Pad, the corresponding hatch will open. So if you see a door like this:
You should press Up, Left, Down, Right, Down, Left, Up and Right on the D-Pad.
