The following are known Game Genie Codes for Samurai Shodown on SEGA Game Gear.

• Infinite Time
  00C B3D 3BE
• Start Round With 50 Seconds
  3EC 62D 80E
  32C 63D 193
• Start Round With 60 Seconds
  3EC 62D 80E
  3CC 63D 193
• Start Round With 75 Seconds
  3EC 62D 80E
  4BC 63D 193
• Both Players Start With 1/4 Energy
  14F 4BF E6B
• Both Players Start With 1/2 Energy
  22F 4BF E6B
• Both Players Start With 3/4 Energy
  30F 4BF E6B
• Infinite Energy
  01B F4D EB9
• Get Pow From Every Hit
  3EC 51D 191
  01C 53D 08A
• Once You Have Pow You Keep It
  007 CAD 3B2
• All Hits Do Massive Damage
  20B 4BC F77
  06B 4AC E68