Get infected by the "Z" virus by playing online against someone who already has it.
Complete challenge #4.
Finish Your first ranked online match.
Score 50 goals in total.
Score 10 goals from the outside of penalty box, without the ball touching the ground before reaching the goal.
Score 50 goals from the outside of penalty box.
Win 5 ranked online games in a row.
Finish 10 ranked online matches.
Score 50 goals in ranked online games.
Win 2 ranked online games in a row.
Reach "Silver I" rank in ranked multiplayer mode.
Reach "Gold I" rank in ranked multiplayer mode.
Complete challenge #20.
Win 250 ranked online matches.
Finish 500 ranked online matches.
Finish 150 ranked online matches.
Score 250 goals in total.
Complete challenge #44.
Complete challenge #56.
Complete challenge #68.
Complete challenge #80.
Win 75 ranked online matches.
Win 10 ranked online games in a row.
Score 200 goals in ranked online games.
Win 20 online ranked matches against opponents with ranks higher than yours.
Play a match against 5 different Steam friends.
Unlock 15 achievements.