Metal Slug Anthology Cheats - PlayStation 2
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Desktops 1
Successfully complete all seven Metal Slug games under the Normal difficulty setting and limited continues.
Desktops 2 and Special Music
Successfully complete all seven Metal Slug games under the Hard difficulty setting and limited continues.
Art Gallery
This will tell you which games are needed to beat to unlock an art gallery:
Art Gallery 1 - Beat Metal Slug.
Art Gallery 2 - Beat Metal Slug 2.
Art Gallery 3 - Beat Metal Slug X.
Art Gallery 4 - Beat Metal Slug 3.
Art Gallery 5 - Beat Metal Slug 4.
Art Gallery 6 - Beat Metal Slug 5.
Art Gallery 7 - Beat Metal Slug 6.
Special Art - Beat all Metal Slug games.