Alternate mission completion marker
Rescue all prisoners and collect all items in a mission Note Use the XRay Scan card to make this easier The mission name will be marked with a gold quotCompletequot sign at the selection screen
Collecting card and kills
Even though you have an unlimited amount of lives all of the things done before that will not count after you die try not to die while fighting the Boss
Prisoner cards
Every time you rescue ten prisoners you will get a card
Solider cards
You will get soldier cards when you kill 100 200 300 and 999 soldiers for a total of four cards
Type R card
There is a card in the beginning of mission 4 called Type R If you equip the card your Metal Slug turns yellow and the gun moves in reverse For example if you are moving forward your gun will point in the opposite direction
