This is best to do against the Novice AI or with 4 controllers. You need to block their Connect 4x4 by pressing (your chip will change into a blocker chip) and win the match by scoring a Connect 4x4.
I personally used 4 controllers and had player 2 set 3 in a row on the left going towards the center, while I set chips on the right towards the center. The other two players I just stacked on top and out of the way. When there were 3 chips on either side, I pressed , dropped the blocker and got the win by blocking player 2's chips.