The Golden Lobsters are one of the frequently encountered mechanical giants of the Onion Cities world that can still operate. They were made to filter water and collect various sizes of debris in the underground seas. Due to the fact that the cities stretched for 10 kilometers, and even on top of the main city at least 3-4 levels were built, the ancient masters created mechanical giants who monitored the purity of the seas that flowed under the cities. The internal mechanism was so well made that many machines continued to work after the disappearance of their creators. And the outer case was made of an alloy that did not lose its golden luster even after centuries spent in water and on land. Perhaps that's why they chose the shape of the lobster. In recent years, these golden creatures began to issue a call that can be interpreted as a request for help in case of a breakdown. Masters love to send their still green students in search of this call, because the path they need to do is not easy, and the hidden treasure is completely harmless.