If You complete the indicated task You'll get the allotted gamerscore.
30 ranked online victories (35) - Win 30 times in ranked online matches.
Perfect World Champion (30) - Clear Arcade mode without losing any rounds.
Hyper World Champion (25) - Clear Arcade mode without losing any matches.
50 Token (20) - Play 50 ranked online matches.
7 Stars (20) - Clear single player Arcade mode in highest difficulty level.
10 ranked online victories (20) - Win 10 times in ranked online matches.
World Champion (15) - Compete single-player arcade mode.
Bonus Bonanza (10) - Clear the perfect bonus round in single player Arcade mode.
10 Token (10) - Play 10 ranked online matches.
12 World Warrior (5) - Fight all 12 opponents in single player Arcade mode.
I Got Next (5) - Play a match in the online quarter mode.
Perfection (5) - Clear a perfect match in default difficulty or higher single player Arcade mode.