Download link: https://drive.google.com/file/d/1YV-9fXdZe4olt-ZKjD_AytKoQHCAOizh/view

Ensure the file is named saveData and place it in C:\Program Files (x86)\Steam\steamapps\common\Save Jesus\Save Jesus_Data, or wherever your game is installed at. You can right-click any game in your library, and open up the install folder; if you take that route, just open up the Save Jesus_Data folder and replace the saveData file. Remember to backup your own savefile if you so desire. You may need to disable Steam Cloud Sync, if that even exists for this game, no clue.

I tested this on a family-shared account on a different computer and there were no issues with unlocking the achievements immediately after beating level 50.

Beat level 50 (try to get 3 stars) and you'll unlock "Amen", and the associated ball-specific achievement for whatever you used. Complete level 51 (it's faster and simpler than 50) using each of the other balls to get their achievements. You can change balls via the in-game menu by pressing Escape to open/close it.

If you need the "Star Destroyer" achievement, this savefile is 4 stars away from it. I collected all 3 on level 50, and another on level 51 to get the achievement (as I failed a 3 star level prior to 50.)