Five Nights at Freddy's: Into the Pit

This achievement requires you to get one of the star endings on terrifying difficulty. This difficulty unlocks after beating the game once. The difficulty achievements are not stackable and the game requires 3 playthroughs. Unlike nightmare, you can die. I recommend doing the 1 star ending to save time.

Before beginning, I recommend changing your accessibility settings to turn hiding minigames to auto play. That way, you will never lose the minigame as it autocompletes for you. I also recommend turning on audio visualization as it tells you what animatronic is making which sound and which direction it's coming from.

In this mode, a lot of hiding spots are disabled and Spring Bonnie will destroy sound lures after you use them.

Here is a helpful map of active hiding spots. Scroll to the bottom to find the terrifying map:

https://steamcommunity.com/sharedfiles/filedetails/?id=33054...

I recommend pausing and checking this map for the closest hiding spots whenever you are getting chased as Spring Bonnie is significantly faster in this mode than earlier difficulties. An interesting note is Spring Bonnie gets faster the longer the chase is. Using hiding spots to reset his speed is very necessary in some sections.

Since sound lures are limited, it may be helpful to create your own sound lures. If you force trip yourself 4 times in a row, it will create a red level sound lure. To do this, hold the run button and wiggle back and forth a few times quickly. This will lure Spring Bonnie to your location.

If you want a more in-depth walkthrough for the run then refer to: