Where is the Metal Slug game series set?

The Metal Slug game series — 7 video games, 2006 — is set in the United States, Russia, Italy, Berlin, Hong Kong and 1 more place, and Wikipedia names 2 more. A game is filmed nowhere, so these are where the stories happen, from Wikidata's narrative location statements.

The games

Named in Wikipedia's own articles

Places the members' Wikipedia articles name with no matching Wikidata statement — weaker evidence, listed apart here exactly as it is on every page of this site.

Where they are set