I played the Steam version of the game and slightly modified my save file (it should work on a pirated version).
All items are collected (papers (or as in the localization, Vault Scraps), records, dances, weapons, ink hearts, light bulbs, audio recordings, door key, 5 keys, candles, mask, Porter's notes, items in the Arcade (including a bowling ball), all 7 secret boxes, etc.), all floors are open.
To make it easier to get the Pest Control and Butcher Butcher achievements, 49 crawling, flying creatures and 24 butchers were killed on this save (all 3 times 24 times)
The save is on day 414, so you can complete the secret level. (To replay the level, you need to reuse this save or find a cheat table somewhere)
Help about bosses: They appear every 10 days / on days that are multiples of 10, the boss appears randomly.
Installation instructions:
1) press Win + R
2) enter appdata and press OK
3) go to the LocalLow folder
4) go to the Joey Drew Studios folder
5) then to the Bendy Lone Wolf folder, then to data
6) in the downloaded file, select the folder with the desired difficulty for saving: Easy, Normal or Hard
7) copy the save and paste the folder
8) when the table appears, press "Replace files in the destination folder"
That's it, you're done. You can check and play.
Author: Casar223 PRO MAX