Black's Spikelash in the subway and defeated it. Immediately after that, Lock fought against Commander Trey's Riccoshot and was losing until Bren and the newly tamed Quickforce arrived to assist Lock in defeating Riccoshot. HQ and was severely outclassed in speed until Blackbullet was called back into its Core. In Courage, it fought against Jon Ace's Blackbullet inside S.T.O.R.M. Lock was then used to battle against Skysite and Crossbolt and succeeded in defeating both S.T.O.R.M. Lock then followed Team Core-Tech as they escaped and it was revealed that Chase and Lock were bonded. Chase spun out Lock for the first time on Jon Ace's orders and Lock began destroying the laboratory. Lock debuted in Clash, where Chase found its Core inside Jeredy's Biometric Safe within a Core-Tech Laboratory.

They have the same goals Save the Monsuno from humanity, use the Monsuno to save humanity and the world by extension, and learn to coexist. But, could he do such a thing? Would he? Lock and Chase are true partners. Theoretically, Lock could see humanity as a threat and destroy them. Slow to anger but fiercely protective of Chase, Lock sees great potential in the Suno family, and sticks with the boy because of the incredible potential he represents. Physically strong and potentially destructive, Lock is a wise creature who has experienced earth since the beginning of humanity. Lock, the Monsuno left to Chase by his missing father.