Let's call it a crack of the new millennium.

Download the .nib images from:
https://archive.org/download/Uncracked4am

Open an image with CiderPress:
What? A ProDOS formatted disk and no PRODOS.SYS file?
There must be a custom bootloader.

Use CiderPress -> Tools -> Bulk disk image converter
and move both images from .NIB to .PO Undadorned ProDOS-order.

Boot one of the .PO image with AppleWin and look at that garbled
text screen. Click on the magnifyinig glass, the program is
in a tight loop:

09A8: 4C A8 09    JMP $09A8

a few bytes later you find:

09B0: C9 DE       CMP #$DE
....
09B9: C9 AA       CMP #$AA

and:

09C2: C9 BE       CMP #$BE

Smells like modified data prologue.

Open both the .PO images with your favourite hex editor and change the bytes
$DE and $BE to the standard $D5 and $AD. They are located at offset $1427 and $1439.

How they say?
Quod erat liberandum.
Reboot and... enjoy.

Oh boy! I need a catchphrase...
How about: No Apples II were harmed in the making of this crack?