Overview
List of levels that have secret discs put into guide form so it’s easy to reference in game.Thanks to various Steam Forum users for the info.
List
Airport (5-1)
Mall (6-4)
Chinatown (7-2)
Helipad (8-3)
Dark Alley (9-1)
Graveyard (10-2)
Corpo Office (11-1)
Construction Yard (13-5)
Foundry (14-3)
Airplane (15-6)
Desperados Bar (16-3)
Outer Heaven (17-4)
Resturaunt (18-5)
Pyramid (19-4)
Details
More details if you want.
Airport
In the X-ray Scanner.
Mall
Inside the Toilet Stall
Chinatown
Inside the top Kimchi Pot.
Helipad
Inside the cargo Container with the guns on it.
Dark Alley
In the Garbage Bin.
Graveyard
In the Mausalium (not the breifcase).
Corpo Office
In the bottom Drawer.
Construction Yard
Inside the Wire Spool
Foundry
On the back doors in the Van. You need to grab it as it goes by.
Airplane
Inside the Landing Gear. You have to grab it before it lowers.
Desperados Bar
Under the Pool Balls.
Outer Heaven
In the Tank behind you.
Resturaunt
In the Second Kimchi Pot from the left.
Pyramid
Behind the Screen in the console in front of you.