"Whenever you initiate a melee charge-up attack, there's a single frame where you can change your direction.

In this single frame, you can flick your mouse to the "right side" of your back(150~160 degrees to the right of your aim) to extend your swings, covering all 360 angles with the attack.

1. Start the charge-up attack.
2. As soon as the swing starts, flick your mouse to 150~160 degrees right side then click."