Objectives

在头目连环战期间击败世界头目，获得额外奖励！

Tiers

1. 0 : 3 objectives completed
2. 0 : 6 objectives completed
3. 0 : 9 objectives completed
4. 0 : 12 objectives completed
5. 0 : 15 objectives completed
6. 0 : 18 objectives completed
7. 0 : 21 objectives completed
8. 0 : 24 objectives completed
9. 0 : 27 objectives completed
10. 0 : 30 objectives completed