1. If players gathered the right combination of items, they could open a portal to a level filled entirely with weapon-wielding, bipedal bovines, with a chance to get special loot. 只要玩家集齐那两样神奇的东西(回城书和维特之腿),就可以开启一个通往满是挥舞着武器两脚站立的奶牛的地方的通道。
2. Satisfied control effect could also be obtained by chemotherapy in human and bovines combined with behaviour intervention for human and vaccination for bovines without snail control. 在不进行灭螺的情况下,人牛化疗合并人的行为干预和牛接种疫苗,同样可获得很好的控制传播效果。