Go to the wings to score easy goals. Go to game modes friendship. Choose out or home and teams, then do start with home or away plus 5.
Go to the "Game Modes" screen, then choose your team. Go to "Head Start" and set it as desired. For example, if you want to win by five goals then choose "Head Start 4+" so that you will only have to score one goal to win.
Press and hold the L Button and the Y Button at the same time and perform the following sequence using the +Control Pad LEFT,UP,UP,RIGHT,DOWN,DOWN,RIGHT,DOWN