Rescuing good robots are part the of quest "Restoring the Base". There are total of 13 missing robots, however, we are only looking for 10 places (some places have 2 missing robots).
Missing Robot #1
Location: En - Harbor, at the end of second pier.
Teleport to "Frontier Town of En -> Harbor - Wharf" and go to second pier.
Missing Robot #2
Location: En - New District, near the garbage dump, west side.
Teleport to "Frontier Town of En -> New District - Square", go left to until you see the garbage dump.
Missing Robot #3
Location: Uzra - Deck (Bow), east area.
Teleport to "Luxury Cruiser, Uzra -> Bridge", turn around and go down to Bow Walkway. Use the bottom door to Deck (Bow).
Missing Robot #4
Location: West Vence, water canal near the entrance to Water Depths.
"Vence City of Water -> West Vence - Marketplace". Take the gondola at the pier nearby (a) then peddle to the northwest pier (b), shut off the water gate (c) and (d) to access the tunnel.
Missing Robot #5
Location: Vibra - Town Center, on the rooftop of Housing Complex.
Teleport to "Vibra Royal Capital -> Town Center", go inside the House Complex (a), then go to F4, climb the ladder to the rooftop.
Missing Robot #6
Location: Southern Forest - Entrance, near the spring water.
Teleport to "Southern Forest -> Forest - Entrance", then turn left immediately. The robot is at the lake.
Missing Robot #7
Location: Vibra - Outskirts, at the beach next to a boulder.
Teleport to "Vibra Royal Capital -> Outskirts", go south you'll a big boulder.
Missing Robot #8
Location: Falcion Bypath - Bluff, northwest near a tree at the bottom of the cliff.
Teleport to "Falcion Bypath -> Bottom of Waterfall", take the upper path until you'll see a robot near a row of trees.
Missing Robot #9
Location: East Vence, in front of a house in the middle of the river.
Teleport to "Vence City of Water -> East Vence - Deserted Area", then paddle to pier (b).
Missing Robot #10
Location: Heart of the Infestation - Boundary, near the exit at the north.
Teleport back to the "Mecha Infestation - Center -> Boundary", then head to the northwest area (follow the map) to pick up the last missing robot.