使用幽灵加农炮把鬼魂赶回墓穴。

Objectives

使用幽灵加农炮，在海妖暗礁消灭个鬼魂。

Tiers

1. 0 : 8 objectives completed
2. 1 : 88 objectives completed
3. 2 : 168 objectives completed
4. 3 : 288 objectives completed
5. 4 : 368 objectives completed