This page contains Metal Slug Advance Hints for GameBoy Advance called "Alternate mission completion marker" and has been posted or updated on Mar 10, 2008 by gabriel. Let us know what you think of this Hint by thumbs voting.
Alternate mission completion marker
Rescue all prisoners and collect all items in a mission. Note: Use the X-Ray Scan card to make this easier. The mission name will be marked with a gold "Complete" sign at the selection screen.
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