Make sure to set you game up so the goal limit is 15, so you'll have the maximum amount of chances to gain this.
To get power ups you need to check your opponents. The powerup required for this is a set of dumbbells, the game announcer will also call it out when you pick it up. While you have this power up score 2 goals with the player it is attached to. You can not do this with just one Juggernaut Powerup, since your powerup goes away after a goal. So pick it up again to gain the second goal.
*This can be boosted with a second controller or online*
Powerups make scoring goals easier. Make good use of the Skill Stick controls for dekes, use to spin out of danger. Pass () to open teammates for one-timers, check the goalie (If you are playing with a friend), and use if you can't get a good shot off, trick shots somehow magically put themselves in the net at unexpected times.