Ride the power lines

Ride the power linesis an optional mission in Going Commando that takes place in the Silver City, Boldan, and occurs concurrently with "Explore Silver City". Ratchet and Clank used the Grind Boots along the power lines while exploring the city to travel around parts of the city. At the end of the power lines, they encountered Slim Cognito once again, selling weapon mods.

It is possible to reach the Insomniac Museum garage along the power lines, and through a glitch, enter the garage, and thus, access the teleporter to the Museum.

Walkthrough
To begin the mission, from the main entrance, head straight up to the elevator by a tower, then climb the ladder behind it and jump on the power line, beginning a Grind Boots segment. Along the first few areas, jump left and right as needed to avoid the electricity generated from the electric transponders, and do not allow them to hit you. At the end of these power lines, jump across to the yellow railing, and then jump to the power line again to continue (make sure you jump, as you will otherwise fall to your death at this point). Continue along the power lines and jump across to the construction site, grind across the beams, then jump again to the next set of power lines. Once agni, continue to dodge transponders through the rest of the power lines, jump across the gap to the last construction site, and reach your destination.

You will eventually reach an island with another Slim Cognito mods shop. Purchase mods for weapons you are currently using while you are here, then take the teleporter inside the building back to your ship.