Unlock bonus video
     Press  Start  to pause the game play and go to "Archives". Choose
the  "B-Movie"  option,  then press and hold the left thumb-stick down
and  press A, X, Y, B, X, B, Y, A, A to unlock the Salad Days with Pox
and Crypto movie.

Gallery items:
     Finish  the  following  missions to unlock the indicated items in
the Gallery menu:

The Martians...Err, Blisk are Coming!: Gene Blend - The Blisk Files 
Popular Mechanics: Gene Blend - Popular Mechanics
Oh the Humanity!: Gene Blend - Oh the Humanity!
It's the Sixties: Gene Blend - The Swinging Sixties
Furons A Go Go!: Gene Blend - Furons A Go Go!
Desperately Seeking Natalya: Gene Blend - Natalya's Secrets
Crypto's Back!: Gene Blend - Crypto's Back

Unlock movies:
     Collect  the  indicated  ammount of Alien Artifacts to unlock new
movies. Go to the B-Movies menu to watch them.

Unlock Rap Party Video: Find 10 Artifacts.
Unlock Opening Movie Animatic: Find 20 Artifacts.
Unlock Happy Mix Introduction Movie: Find 30 Artifacts.
Unlock Salad Days With Crypto And Pox: Find 40 Artifacts. 
Unlock Closing Movie Animatic: Find 50 Artifacts.
Unlock Ending Movie: Complete the entire game.

Jukebox entries:
     Finish  the  indicated  missions  to  unlock  new  entries in the
Jukebox menu.

When You Touch Me - Finish Rage of Aquarius side mission  
Turn It Off - Finish Mission 18
Tunguska Undisguised - Finish Mission 22
Tunguska Hunted - Finish Mission 22
Tunguska Disguised - Finish Mission 22
Takoshima Undisguised - Finish Mission 16
Takoshima Hunted - Finish Mission 16
Takoshima Disguised - Finish Mission 16
She Changes Like the Weather - Finish Mission 3
Pier 13 - Finish Mission 18
Pattern Skies - Finish Rage of Aquarius side mission
Moon Base Solaris Undisguised - Finish Mission 28
Moon Base Solaris Hunted - Finish Mission 28
Moon Base Solaris Disguised - Finish Mission 28
Long Road - Finish Mission 9
Help You Ann - Finish Mission 12
Down In the Valley - Finish Mission 9
Dirty Red - Finish Mission 21
Destroy All Humans 2 Theme - Finish Mission 19
Bay City Undisguised - Finish Mission 5
Bay City Hunted - Finish Mission 5
Bay City Disguised - Finish Mission 5
Back In That Room - Finish Mission 4
Albion Undisguised - Finish Mission 10
Albion Hunted - Finish Mission 10
Albion Disguised - Finish Mission 10

Screensaver:
     Do not move for a few seconds and the screen will turn monochrome
mode.

Unlock Additional Arkvoodle Cult missions: 
     Finish  the  main  missions  and  Odd  Jobs to access more of the
Arkvoodle Cult missions.

Unlock Final Arkvoodle Cult mission:
     Find 30 Alien Artifacts to access to the final Arkvoodle Cult mission.

Furotech Cell Detector:
     Finish  all  of the Arkvoodle Cult missions in Takashima. Use the
Detector  to  display  Furotech  Cell locations on your mini-map/radar
when you are

Unlock Alien Artifact Detector:
     Finish all of the Arkvoodle Cult missions in Albion.

Find the Quantum Deconstructor:
     Search  around the village of Tarkovskoye (in Tunguska). Pox will
message you about the Datacore when you are close to it.