Earthrock Trilobyte, known as Earthrock Torirovich (アースロック・トリロビッチ Āsurokku Torirobicchi?) in Japan, is a New Generation Reploid from Mega Man X8 based on a trilobite. Trilobyte was in charge of the Rare Metal mine in Metal Valley, which has minerals essential to space development used by the Jakob Project. When he became a Maverick, he instigated a rebellion in Metal Valley and gave the extracted minerals to Sigma. In the entrance of the warehouse, he tries to stop the Maverick Hunters with Crystal Walls before they can reach him.