The Incredible Hulk.

 No.  Code  Effect
   1  ALVT-8A82  Level select screen appears after you start game
   2  DVPV-AA9Y  Don't take damage as Hulk/Super-Hulk
   3  DVRB-AA6W    Don't take damage when "Hulked-Out"
   4  A4YT-8A46  Don't lose health with time when "Hulked-out"
   5  ABDV-AAA6  No lives lost from running out of health
   6  ABNB-AAGT  No lives lost from falling in water
   7  ACYA-8AG2  Infinite transformation capsules
   8  AC5A-8AB4  Infinite time to defeat bosses
   9  ABRV-AAFN  Guns have infinite ammo
 10  BKJV-AAE6  Can perform Super Hulk moves at 10%
 11  CVJV-AAE6  Can perform Super Hulk moves at 20%
 12  D3JV-AAE6  Can perform Super Hulk moves at 30%
 13  AJ2V-AA64  Regular gamma capsules don't max out at 70% (can Hulk-Out)  
 14  CT3B-AAAJ  Capsules add twice as much (Hulk only)
 15  D23B-AAAJ  Capsules add three time as much (Hulk only)
 16  KR4A-8AEN  Start 1st life with 75% health
 17  KRXA-8AE8  Start all lives but 1st with 75% health
 18  PC4A-8AEN  Start 1st life with 100% health
 19  PCXA-8AE8  Start all lives but 1st with 100% health
 20  AG4A-8AEY  Start with 1 life
 21  AL4A-8AEY  Start with 2 lives
 22  AW4A-8AEY  Start with 4 lives
 23  A04A-8AEY  Start with 5 lives
 24  A84A-8AEY  Start with 7 lives
 25  BG4A-8AEY  Start with 9 lives