Back up your own save files!
Switch off your Steam synchronisation.

Download my save files from:
https://drive.google.com/file/d/1lVGmmLZkIMd9n8XPvQw8PJPFccwhUC0m/view?usp=sharing

Place what's inside the folders in:
C:\Users\#####\AppData\Roaming\Ion Fury

Once you move downloaded files in, you will have:


To get "Maximum Fury difficulty achievement" select Max Fury.

To get specific hidden achievement, go for eponymous files.

To get 100% run.. I think you got it.

You still have to enter, interact, run inside or shoot to get the trophies.
At least you don't need to search them.


Gone Batty (Level 1)
Approach the origami figure:



All Doors Are Locked (Level 4)
Enter the lilac room:



Wasted! (Level 9)
Get inside the garage:



The Owls Are Not What They Seem (Level 12)
Reach the end of the vents, then run out real fast to enter this red room:



Peanuts and Cracker Jacks (Level 14)
Unlock the secret level:



Complete and Total Meltdown (Level 17)
You have around 10sec to run inside and get the armor with grenades



Diddle for the Middle (Level 17)
Score in darts



Terminated (Level 23)
Shoot the Moon



Ultimate Failure (Level 27)
Walk through the Secure Area wall

T-Shirt (Proof that you've done it all) is guarantied if you used 100% run save


Dedicated (Complete the game on Maximum Fury difficulty) is guarantied if you used Max Fury save.

I can only assume you've done other requirements by now and 100% secrets was the last needed for Ion Fury (Unlock all achievements).