This page contains Metal Slug 3D Unlockables for Playstation 2 called "Laboratory staff" and has been posted or updated on Sep 4, 2007 by bigsal.
- Developer: Snk Playmore
- Publisher: Snk Playmore
- Genre: Action Shooter Third-Person
- Release: Jun 29, 2006
- ESRB: Not Set
Collect the CDs hidden in the various locations in every mission. Then, enter the "Garage" screen and select "Laboratory". The staff will be found inside.
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