Score goals easily
The easiest way to score a goal is to push the D-Pad on the opposite direction when shooting. Doing this, you will get a "High Shot" and most of the times, depending mainly on your position on the field, the goalkeeper will not get it and the ball will go straight into the net. It's pretty tricky, but you can also choose the side of the goal you want your shot to go into, this way (assume you're using the "Side" camera, and attacking to the right side of the screen.

D-Pad position
Left
Left + Up
Left + Down

Shot direction
Top (center)
Top Left corner
Top Right corner

Moves (in Arcade mode)
Back flick - O and T
Back heel - S and X
Mega shot - T and X
Running - S and O
Pull shirt - T and O (on defense)
Dangerous kick - S and X (on defense)
Push - T and X (on defense)

Dream Team
Press L2 + R2 + Square + X several times at the player select/formation screen that appears before the match begins until the name of your team changes to "Dream Team".

Woman's Voice
Press Select during game play in arcade mode to display the options menu. Select the "Audio" option. Select the "Commentator" option. Hold O + Square to switch to a female voice. Press Left or Right to change the language of the female commentator options.