Latest beta/automated builds have analog controls disabled, moving the sticks to maximum present no effect at all. There was a issue opened about that on github, but the OP closed it without actually solving the problem (there is a workaround, which isn't true analog control).
Also, whenever a 2nd controller is connected, it disables the first one entirely, leaving the second controller as Player 1. (Might have been fixed up already, battery just got empty before I updated to latest betas)
Tested with Xbox 360 controllers!!!
Edit: Ok, seems like the Controls Wiki page was updated. So now you need to move the analog stick down and press START+SELECT to activate analog controls, thanks for finally making this change public!!
Still need to test if 2nd controller is breaking joystick maps though.
Edit2: Multiplayer mode needs an additional step to be activated. Press F4 and another keyboard button to enable it.