Perfect Games

Perfect games are games in head soccer in which you score at least 10 goals and don't allow your opponent any. The reason these are called perfect games is because if you do this it completes two (possibly the hardest) achievements: win by at least ten goals, and win without allowing a goal.

Purpose
Perfect games have no real purpose other than to unlock two the two hardest achievements against the same person with only playing one game. But getting a perfect game also brings a sence of pride as not just anyone can have perfect games.

Strategy
There is no real strategy to perfect games, except use your best player, and do your best. These are hard to do, but it is realy cool if you can get a perfect game.

Types
In arcade, a perfect game is what I described above, but there are different versions of perfect games for each game mode. A Perfect Tournament is when you score at least 30 total goals and don't allow a single goal. A Perfect Survival is when you make it to at least level 49 before allowing a single goal. And a Perfect League is when you finish 18-0, each game having been a shut-out.