The Nightmaretaker - Guide |link|

When a nightmare entity appears, the natural human reaction is panic. In a dream, panic is like throwing gasoline on a fire; it feeds the nightmare, making it stronger and more chaotic.

You cannot fight. You cannot hide indefinitely (he learns your hiding spots after two uses). Here is what works. the nightmaretaker guide

Each level has 2–3 layers:

: To reach the later stages, you must manage your resources carefully. Some levels, like level four, can be finished without a key for specific achievements, but generally, you'll need to hunt them down to proceed to the final Gate. The Boss Gauntlet When a nightmare entity appears, the natural human

The search results do not contain a specific product or media title called You cannot hide indefinitely (he learns your hiding

Useful if you’re already frustrated, but not a polished guide. Better free resources exist on fan wikis or Reddit for most nightmare-themed horror games.