Indiana Jones and the Staff of Kings (Sony PSP)

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Bottomless Pit time trial level

Complete all levels under the Archaeologist difficulty setting.

Concept art

Collect the indicated number of artifacts to unlock the corresponding concept art.

Allies: 12 Artifacts.
Co-op Levels(Wii Only): 8 Artifacts.
Cutting Room Floor: 36 Artifacts.
Enemies: 22 Artifacts.
Extras: 20 Artifacts.
Istanbul: 28 Artifacts.
Nepal: 26 Artifacts.
Odin And Seabed: 32 Artifacts.
Panama: 18 Artifacts.
San Francisco: 14 Artifacts.
Sudan: 2 Artifacts.

Concept Arts

The following pieces of art can be unlocked by collecting artifacts.

UnlockableHow to unlock
ChinatownCollect 4 Artifacts.
IstanbulCollect 4 Artifacts.
NepalCollect 4 Artifacts.
OdinCollect 4 Artifacts.
PanamaCollect 4 Artifacts.

Harem time trial level

Complete all levels under the Adventurer difficulty setting.

Movie trailers

Collect the indicated number of artifacts to unlock the corresponding movie trailer.

Raiders Of The Lost Ark: 3 Artifacts.
Temple of Doom: 10 Artifacts.
The Kingdom Of The Crystal Skull: 30 Artifacts.
The Last Crusade: 24 Artifacts.

Skins

Collect the indicated number of artifacts to unlock the corresponding skin.

Big Heads: 6 Artifacts.
Han Solo (Wii Only): 36 Artifacts.
Henry Jones: 34 Artifacts.
Tuxedo Indy: 16 Artifacts.

Treasure Room time trial level

Complete all levels under Grad Student difficulty setting.