Yes, I extracted the .PAK files on Windows as you guided.
All games launch with ...
Games:Beat_Em_Ups/BOR OpenBOR PAKS/HEMAN
... for example. But they fail with errors about missing Fonts in the case of He-Man. And they ALL have issues with MixerThread failing and needing suspending.
I have a A4000T 060/50 with a Picasso IV with 104MB of Fast Ram and I've even tried the -cgx extention to utilise RTG modes on HE-MAN! Oh yeah, Boing Bags 1 & 2 on OS 3.9 ;-)
F10 does still quit to Workbench despite the screen going black for BOR after the menu. Up and down seem unresponsive on the menu both the arrow keys and joystick!