At the main menu press
change rounds to win from 2 to 1.
Then go to Fight and select Local. Press
to switch the opponent type from a second player to the CPU (or use a second controller for a guaranteed win).
Select Jax and an opponent, loadouts don't matter.
Then once you get to the end of the Match when "FINISH HIM" comes onto the screen input one of these combination at the specified distance:
-Comin in Hot (Close/right next to the opponent)
- Still Got It (Close/right next to the opponent)
*Directional inputs are assuming you are on the left side of the screen*