Level select
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press A, R, Z, Up(2), C-Up, C-Down(2). If you entered the
 code correctly, the phrase "Missions Open" will appear. Then, any
 level and battle mode may now be selected.
 
 Invincibility
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press A, Z(2), Up, Left, Left-C(2), Down-C.
 
 Infinite main weapon
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press A, R, Z, Right, C-Up, C-Right, C-Down(2).
 
 Infinite secondary weapon
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press B(2), Z, Left(2), C-Up, C-Left, C-Right.
 
 Infinite Solaris missiles
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press B, L(2), Z, Up, Down, C-Up(2).
 
 Infinite Titan missiles
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press A, B, L, Up(2), C-Up(2), C-Right.
 
 Infinite weapon energy
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press L, Z, Left, Right, Down(2), C-Down(2).
 
 Infinite Stealth Mantle
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press Up(4), Right, Down, C-Left(2).
 
 One hit kills
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press B(3), L, R, Left, Down(2). -From: jab@vividnet.com
 
 Freeze enemies
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press R, Z, Right(2), C-Up, C-Left, C-Right, C-Down.
 -From: jab@vividnet.com 
 
 Psychedelic mode
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, or while the game is paused, press A, R, Left, Right,
 Down, C-Up, C-Left, C-Down.
 
 Wire-frame mode
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press L(2), R, Z, Left, Right, C-Up, C-Right.
 
 Turbo crazy mode
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press B(2), R, Up, Left, Down, C-Up, C-Left. If you
 entered the code correctly, the phrase "Got it" will be spoken and a
 message will appear. 
 
 Gore mode
 
 When "Press Start" appears on the opening screen, or while the game
 is paused, press Z, Down, C-Up, C-Left(4), C-Down. If you entered the
 code correctly, the phrase "Gore mode" will be spoken and you will
 hear a sound. 
 
 Quick start
 
 When the first screen appears, press the reset button. When the game
 restarts, press Start to skip the series of opening screens.
 
  Game Shark Codez:
 
           
  Infinite Lives                           
  8004013C 0005
           
  Infinite Shields                         
  D014E5E2 0011
  8114E5E0 1000
           
  Press GS Button For 255 Mug Missiles     
  8814E63D 00FF
           
  Press GS Button For 255 Solaris Missiles 
  8814E63E 00FF
           
  Press GS Button For 255 Scatter Missiles 
  8814E640 00FF
           
  Press GS Button For 255 Titan Missiles   
  8814E641 00FF
           
  Press GS Button For 255 Gravgon Missiles 
  8814E642 00FF
           
  Press GS Button For 255 MRFI Missiles    
  8814E643 00FF
           
  Press GS Button For 255 Purge Missiles   
  8814E644 00FF
           
  Press GS Button For 255 Pine Missiles    
  8814E646 00FF
           
  Press GS Button For Quantum Missiles     
  8814E647 00FF
           
  Press GS Button For Spare0 Missiles      
  8814E648 00FF
           
  Press GS Button For Spare1 Missiles      
  8814E649 00FF
           
  Press GS Button For Spare2 Missiles      
  8814E64A 00FF
           
  Press GS Button For Spare3 Missiles      
  8814E64B 00FF
           
  Press GS Button For Spare4 Missiles      
  8814E64C 00FF
           
  Press GS Button For Spare5 Missiles      
  8814E64D 00FF
           
  Press GS Button For Spare6 Missiles      
  8814E64E 00FF
           
  Press GS Button For Spare7 Missiles      
  8814E64F 00FF
           
  Press GS Button For Spare8 Missiles      
  8814E650 00FF
           
  Press GS Button For 255 Tag Bombs        
  8814E651 00FF
           
  Press GS Button For Max Pods             
  8814E610 0003
           
  Press GS Button For Full Shields         
  8914E5E0 1000
           
  Press GS Button For Full Hull Energy     
  8914E5E2 1180
           
  Press GS Button For Full Primary Weapon  
  8914E5E8 8000