PAK (File Format)

The .pak format is a packfile format; some variation of it is used in every Retro Studios game to contain the bulk of the game's assets. The only assets in a pak that are directly accessed by the games are the named resources; the rest are dependencies. There are three pak formats:

• PAK (Metroid Prime) is used in Metroid Prime and Metroid Prime 2.
• PAK (Metroid Prime 3) is used in Metroid Prime 3 and Donkey Kong Country Returns.
• PAK (Tropical Freeze) is used in Donkey Kong Country: Tropical Freeze.