Cheats, Codes & FAQs
"Complete" a mission
In a mission, rescue every prisoner and collect every available item (the X-Ray scan card is useful for this) to get a golden "COMPLETE" sign over a mission on the map screen.
Get Allen Jr's card
In mission 5, find and kill Allen. (He has a large machine gun, throws grenades and will slash you with a knife if you get close and is different to any normal enemy) When you do kill him, he will drop a card. Collect it, then complete the level without dieing to keep the Allen Jr card.
Get the boss cards
When you are fighting a boss, you must destroy it very quickly to get its card (A message will appear on screen informing you that you have the card) To defeat the bosses quickly you must have lots of grenades and a special weapon (like the flame shot for the fourth boss) or use the Metal Slug if you can get it (Second, third and final boss)
How to unlock soldier cards
- Kill 100 soldiersSoldier A card
- Kill 200 soldiersSoldier B card
- Kill 300 soldiersSoldier C card
- Kill 999 soldiersSoldier D card
- Don't kill any enemies and complete a level. Just die as soon as you start a level.Washout
Unlock All cards card
Collect all 99 cards in the game to get the final 100th "All cards" card.
Unlock Decoration Card
You need the "paper thin" card. Turn it on, then complete any mission. With paper thin turned on you will die with just one hit. The easiest way to get the decoration card is to complete mission 2, mainly because there is a Metal Slug at the near start of the level which is shielded, so if you can manage to get through the level with the Metal Slug it shouldn't be as difficult to get the card.
Unlock mission cards
You just have to clear the mission, you can die as many times as it takes.
- Complete mission 1M1 Clear Card
- Complete mission 2M2 Clear Card
- Complete mission 3M3 Clear Card
- Complete mission 4M4 Clear Card
- Complete mission 5M5 Clear Card
- Complete every missionAll clear
Unlock the extra Dungeon mission
In Mission 5, find and collect the dungeon card. Then complete mission 5 and go to the mission select screen and to the top left there is an extra mission called dungeon.
Ways to unlock prisoner cards
- Rescue 10 prisonersPrisoner A Card
- Rescue 20 prisonersPrisoner B Card
- Rescue 30 prisonersPrisoner C Card
- Rescue 40 prisonersPrisoner D Card
- Rescue 50 prisonersPrisoner E Card
- Rescue 60 prisonersPrisoner F Card
- Rescue 70 prisonersPrisoner G Card
- Rescue 80 prisonersPrisoner H Card
- Rescue 90 prisonersPrisoner I Card
- Rescue all prisonersAll saved