Hold X and get maximum speed. Once at full speed, find someone skating next to the wall. Skate at him while still holding X and press Square when directly next to him. If done correctly, you will send him over the wall.

Set the "Lines Change" option to "Manual" then take control of the opposing team. Next, change the goalie line to the EX line. The goalie should return to the box and another player will come out. This creates a situation with no goalie and easy scores.