Metal Slug Advance » ❲LIMITED❳

There is a specific card titled (Card #004) that changes the fundamental gameplay.

Obtaining this card is necessary if you want to unlock the Decoration card .

You must finish a mission without dying after collecting a card to keep it. The "Paper Thin" Card Metal Slug Advance

There are 100 cards in total. You find them by shooting hidden background elements or rescuing specific hostages.

If you are looking for "paper" related to Metal Slug Advance , you are likely referring to the game's central or the specific high-difficulty Paper Thin card . The Card System There is a specific card titled (Card #004)

When active, your character (Walter or Tyra) will die in a single hit .

While some are just for display, many cards grant gameplay bonuses like increased weapon power, new "Slug" modifications (like the Slug Gunner ), and access to hidden map routes. The "Paper Thin" Card There are 100 cards in total

In Mission 3, you can find it by shooting the corner of a specific block in the first secret cave area.