The following are known Game Genie Codes for Midnight Resistance on SEGA Genesis.

• AE2T-BA4A
  Start at stage 2
• AJ2T-BA4A
  Start at stage 3
• AN2T-BA4A
  Start at stage 4
• AT2T-BA4A
  Start at stage 5
• AY2T-BA4A
  Start at stage 6
• A22T-BA4A
  Start at stage 7
• A62T-BA4A
  Start at stage 8
• BA2T-BA4A
  Start at stage 9
• AA2T-AADL + JJ2T-AJDN
  Start with 1 life
• AA2T-AADL + LJ2T-ALDN
  Start with 8 lives
• AA2T-AADL + FA2T-AJDN
  Start with 10 lives
• ABGA-AABN + JKGA-AJBR
  Continue with 1 life
• ABGA-AABN + LKGA-ALBR
  Continue with 8 lives
• ABGA-AABN + FBGA-AJBR
  Continue with 10 lives
• CAWA-AA2Y
  Infinite lives
• HXXA-FAC6 + AHXA-EAC8 + HXXA-FBE4 + AHXA-EAE6
  Supply room items require 1 key each
• HXXA-FAC6 + AMXA-EAC8 + HXXA-FBE4 + AMXA-EAE6
  Supply room items require 2 keys each
• HXXA-FAC6 + A5XA-EAC8 + HXXA-FBE4 + A5XA-EAE6
  Supply room items require 6 keys each
• RHXA-E6XG + AMXA-EA64
  All supply room items are free
• JGAT-EEVR
  Infinite ammo for full-auto weapon
• JGAT-EEY2
  Infinite ammo for 3-way weapon
• JGKA-EET4
  Infinite ammo for flame thrower
• JGAT-EE1Y
  Infinite ammo for shotgun
• JGBT-EEVJ
  Infinite ammo for nitro weapon
• JGBT-EEYE
  Infinite ammo for shower weapon
• JGAA-EEZJ
  Infinite ammo for homing missile
• RHRA-E6T2
  1-up worth 0 lives
• JDRA-FJT2
  1-up worth 2 lives
• JDRA-FYT2
  1-up worth 5 lives
• JDRA-FAT2
  1-up worth 8 lives
• AA2T-AADA + JJ2T-AJDC
  0 continues
• AA2T-AADA + LJ2T-ALDC
  7 continues
• AA2T-AADA + FA2T-AJDC
  9 continues
• AVGA-AA34
  Infinite continues