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Finish bonus level of chapter one. | 9.30% 非常珍贵 |
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#6 Oil Boil! Finish bonus level of chapter two. |
9.30% 非常珍贵 |
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#9 Tsunami! Finish bonus level of chapter three. |
7.80% 非常珍贵 |
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#12 Frozen Heart! Finish bonus level of chapter four. |
7.80% 非常珍贵 |
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#15 Skull Crusher! Finish bonus level of chapter five. |
4.60% 极为珍贵 |
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Finish all bonus levels. | 4.60% 极为珍贵 |
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Finish first three levels of chapter one with all tanks. | 10.90% 非常珍贵 |
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Finish first three levels of chapter two with all tanks. | 9.30% 非常珍贵 |
 |
#8 Wave Rider! Finish first three levels of chapter three with all tanks. |
7.80% 非常珍贵 |
 |
#11 Ice Princess! Finish first three levels of chapter four with all tanks. |
7.80% 非常珍贵 |
 |
#14 Moon Howler! Finish first three levels of chapter five with all tanks. |
4.60% 极为珍贵 |
 |
Finish first three levels of chapter one with any tank. | 20.30% 珍贵 |
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Finish first three levels of chapter two with any tank. | 12.50% 非常珍贵 |
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#7 Sprinkler! Finish first three levels of chapter three with any tank. |
9.30% 非常珍贵 |
 |
#10 Albino Killer! Finish first three levels of chapter four with any tank. |
9.30% 非常珍贵 |
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Finish first three levels of chapter five with any tank. | 4.60% 极为珍贵 |
