Metal Gear Solid 2: Substance



  
Xbox





  











Ninja Raiden:



  Beat 50% of Raiden's VR missions. 

 Raiden X:



  Beat 100% of Raiden's and Ninja Raiden's VR missions. 

 Pliskin:



  Beat 50% of Snake's VR missions. 

Tuxedo Snake:



  Beat 100% of Pliskin's VR missions.

 Metal Gear Solid 1 Snake:



  Beat 100% of Pliskin, Snake, Tuxedo Snake, Ninja Raiden, Raiden X, and Raiden. 

Photograph mode:



  Beat Bomb Disposal, Eliminate, and Hold-Up modes.

Sunglasses: 



  Beat the game twice and Snake and Raiden will be wearing sunglasses. 

European Extreme difficulty: 



  Beat the game under normal difficulty. 

Boss Survival mode and Casting Theater: 



  Beat Sons Of Liberty under any difficulty setting. 

 Control Title Screen:



  Press White to hear a gunshot and use the Right thumbstick to change the colors. 

Dog Tag rewards:



  Collect 30 to get the Bandana, Infinite Ammo - Tanker Mission



  Collect 80 to get Stealth Invisibility - Tanker Mission



  Collect 80 to get Infinite Ammo - Plant Mission



  Collect 120 to get the Stealth Invisibility - Plant Mission



  Collect 160 to get the Orange Wig, Infinite Grip - Plant Mission



  Collect 200 to get the Blue Wig, Infinite Oxygen - Plant Mission





  



  



Thanks to Revolution readers Billy, Marcus, The_Volx and Frankiedragon!