Metal Slug Advance Game Boy Adv Unlockables

"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 soldiers
  Soldier A card
• Kill 200 soldiers
  Soldier B card
• Kill 300 soldiers
  Soldier C card
• Kill 999 soldiers
  Soldier 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 1
  M1 Clear Card
• Complete mission 2
  M2 Clear Card
• Complete mission 3
  M3 Clear Card
• Complete mission 4
  M4 Clear Card
• Complete mission 5
  M5 Clear Card
• Complete every mission
  All 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 prisoners
  Prisoner A Card
• Rescue 20 prisoners
  Prisoner B Card
• Rescue 30 prisoners
  Prisoner C Card
• Rescue 40 prisoners
  Prisoner D Card
• Rescue 50 prisoners
  Prisoner E Card
• Rescue 60 prisoners
  Prisoner F Card
• Rescue 70 prisoners
  Prisoner G Card
• Rescue 80 prisoners
  Prisoner H Card
• Rescue 90 prisoners
  Prisoner I Card
• Rescue all prisoners
  All saved