Controls

[Action]: [Keyboard input] -- [Gamepad input]
Move: WSAD/Arrows -- Left Stick/D-Pad
Jump: Space bar/C -- Bottom Face/Left Bumper
Punch: P/Z -- Left Face/Right Face + Direction
Dash: O/X -- Top Face/Right Bumper + Direction
Break Attack: Hold Dash + Press Punch + Direction (can also be done with the Right Stick on Gamepad)

Notes

Has full gamepad support
Remap inputs in the options menu
"Tap up to Jump" can be set
Gamepad Stick Deadzone can be set between 10% and 85% of the gate radius
The game is currently only playable in Chromium-based browsers, e.g. Chrome

To ensure your gamepad controls are working, you can open a Visualizer for your inputs by going to Options -> Video -> Display Inputs. These show the real-time inputs from your controller regardless of what's happening in the game.