Demo bug: black line running from Scorpion/ Cage to offscreen.

I thought so too, but it actually saves your changes to Preset 1.

When you select your character at thh screen, press Square to choose your preset configuration. Select 1.

(The presets are to save different control schemes so your friends don't have to keep changing it up every time they play. It's just not explained well in the demo.)

You need to press square in the character select screen and the change the default to 1. Hope that helps

Thank you you both for clearing things up.
 
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