Spain has a square head, tan skin, a big round nose, square ears and a curly mustache. On top of his head, he wears something that could be a green leaf hat, but others argue that it is just his hair, which is green and thus a different color than his facial hair.
Spain's Power Shot is called Laser Shot. Spain rises into the air, almost to the top of the screen, and launches three balls towards the goal. Only one of them is needed to enter the opponent's goal to be counted as a goal; that's why it's so effective: Blocking three fast balls, one after another, is tough, even with a special Power Shot in tow.
His Power Shot works best on the semicircle, not in it, because only then all three balls are certainly on target. Around midfield, the first ball doesn't go in and getting too close won't result in a goal, and it might even become an own goal, but near your goal the third ball will miss. The best advice is to always use Spain's Laser Shot on the semicircle, not in, and even play more defensively with Spain than you are used to with other characters. Also, when you have to stop Spain's shot, you must stay close to your goal, because that's the only way to block it successfully.
Sometimes, when Spain rises into the air to do his Laser Shot in Multiplayer, his three balls won't go with him; so he fires them towards the ground instead of towards the opponent's net, making it worse.