Using a ps4 controller (with steam's controller handling) doesn't seem to quite work (unless I just completely don't understand the move instructions it gives you when you first select a character in story mod).
Moving around works, all the face buttons do what the screen says they should do, pausing with R2 works... but I cannot get the power move to work at all. Supposedly L + M + H is mapped to L1... which I believe should be initiating the strip combo if I use it when the strip bars are full... but pressing L1 just makes my character lean back for a second (I was using the internet DJ guy). I noticed that it is supposed to reset if you pause and then L + M + H, but L1 does nothing when I'm paused... however if I press square, X and circle at the same time (L, M, and H respectively), it does actually reset. So it seems that L1 as L + H + M is broken.
Realizing that, i figured, OK what I'll try to do then is when I would have usually tried to use L1 to initiate a strip combo per the instructions but it doesn't actually seem to do anything meaningful, I'll instead try pressing L and M and H simultaneously to do the strip combo in the same way i pressed them simultaneously to get the pause reset feature to work... but no dice. It would end up just doing one of the regular attacks as if I only pressed one of the buttons (presumably because it wasn't strictly hitting them simultaneously enough?)
I tried to use the keyboard instead, but apparently it had already latched on to my ps4 controller and the keyboard didn't do diddly squat.
In any case, controls are slightly broken to the point where I can't do any of the S actions, or I'm broken, or they don't support the ps4 controller very well. Either way, I'm blocked from doing any of the stuff this game has any reason for which to exist.