Metal Slug - 1996 VG is rated/received certificates of:
USA:E
Metal Slug Anthology - 2006 VG is rated/received certificates of: USA:T
Metal Slug 3 - 2000 VG is rated/received certificates of: USA:T
Metal Slug 4 - 2002 VG is rated/received certificates of: USA:T
Metal Slug 5 - 2003 VG is rated/received certificates of: USA:T
Metal Slug X - 2001 VG is rated/received certificates of: USA:T
Metal Slug happened in 1996.
Metal Slug was created in 1996.
Slug Girl - 2013 is rated/received certificates of: Canada:G
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Metal Slug Advance happened in 2004.
Metal Slug Advance was created in 2004.
Metal Slug Anthology happened in 2006.