Controllers

Killer Queen Black works with a wide array of 3rd party controllers.

The default first party controllers supported out of the box are:
 * Joycons (Nintendo Switch)
 * Nintendo Pro Controller (Nintendo Switch)
 * Keyboard (PC)
 * Playstation Dual Shock 4 (PC)
 * Xbox One Gamepad (PC)

Confirmed Support Nintedo Switch Controllers
(Note: 8BitDo controllers may experience extreme lag in local wireless play, but work well for online play)
 * Nintendo Pro Controller
 * Nintendo Gamecube Controllers
 * 8BitDo SN30 Pro
 * 8BitDo SN30 Pro Plus
 * PowerA Enhanced Wireless Controlle

Fight Sticks
Almost any fight stick that can connect via USB will work.

Here is a list of fight sticks we know for sure work:
 * Hori Fighting Commander (fighting pad)
 * Hori Real Arcade Pro 4
 * Madcatz TE, Mad Catz T.E.2+
 * Qanba Crystal
 * Qanba RAF4

Mixed Keyboard/Gamepad Play on PC
It is possible to have one player configured in settings for keyboard, and one on gamepad.

[needs confirmation]

(source @mrmango#4518 on Discord)

Two Players On One Keyboard (PC)
It is not currently possible for two players to play on one keyboard, as each player must be assigned a single input device.

(source @CrillFactor#0592 on Discord)