Yakuza 3
45 Achievements
93-113h
Key Collector
Open all the lockers in the top row in both Kamurocho and Downtown Ryukyu.
5.5%
How to unlock the Key Collector achievement in Yakuza 3 - Definitive Guide
Okay, this bad boy can be a pain. You only need to open the top row of each set of lockers [1-10], but it seems like the single digit locker keys are the hardest to find. You shouldn't have much trouble finding keys in Ryukyu. Make sure you check every street and inside every store. When you're done that, there are two or three back at Sunshine. When that's done, go back downtown and start using to look in trees, above awnings, etc. Your cat is butt-ass ugly. That's where it gets difficult. Rinse and repeat when you get to Kamurocho, though it should be harder since the city is bigger. As for the 1-10 keys, they are as follows....
*ALL credit goes the ThePatrick*
= Use first-person camera to spot
Ryukyu
ONE: In the southwest corner of Kariyushi St. and Market, on a white/green striped awning.
TWO: Inside Aqua Sky
THREE: Inside the Weapon Van
FOUR: On the second floor of the market inside the arcade. Once you reach the top of the stairs, look up at the fluorescent light bulbs.
FIVE: Across from the Monorail Station is Ryukyu Trust Bank and Ebisu Pawn Shop. Look up in the tree out front.
SIX: Directly west of the Monorail Station is a river. Investigate one of the pillars to find the key.
SEVEN: Atop the wooden fence on the south side of the road out front of Sunshine Orphanage
EIGHT: Inside Ryukyu Nights
NINE: In the alley running off from Ryukyu on the west, near Awamorigura, in between two planters.
TEN: On a chair inside Smile Burger
Kamurocho
ONE: In the middle of the path, right at the entrance to the side alley running east from the Club Sega on Nakamichi St.
TWO: To the west of the Coin Lockers, up on a wall above the yellow "No Littering" signs.
THREE: In the middle of the street on the ground on East Taihei st., near the entrance to Karai (Korean Noodles)
FOUR: In the empty space across the street from Park 3, up on the wall at the end, between two outside unit air conditioners
FIVE: On a tree in the northwest corner of the plaza at the base of the Milennium Tower's south side
SIX: Behind New Serena, on top of the brick wall near the blue vending machines
SEVEN: Inside Club Sega in the Square in front of the Theaters
EIGHT: On the floor inside M.E.B.
NINE: Inside the Parking Lot at Shichifuku, on the pipes on the north wall by the No.7 parking space
TEN: On the ground on the southern alley running off to the west from Pink Street, near the Divine Dragon tattoo parlor.