Thunder Force IV Game Genie Codes (Japan)

This page contains the Game Genie codes that I have for Thunder Force IV (Japan), a game for Sega Genesis. If you're using an emulator you will be able to input the codes found on this page directly into the program and use them. For those of you who are old school and playing on a physical console, you'll have to purchase a Game Genie device to use them.

If you don't see the code you want on this page, I recommend you return to my Thunder Force IV Guides Index and choose a different section.

 

All extra/bonus music (Ending, Omake, etc) is available in the option screen: RH9T-A61W

Changes the music for the 2nd song in Air Raid (Stage 3) to Omake-3: FBST-NAAG

Changes the music for the 2nd song in Daser (Stage 4) to Omake-4: FFZT-NACR

Changes the music for the 2nd song in Ruin (Stage 2) to Omake-2: E8ET-HA4L

Changes the music for the 2nd song in Strite (Stage 1) to Omake-1: E3BA-NACR

Course Select screen plays Omake-3 music: FACT-DA2N

Opening screen (don't touch any buttons when game first starts) plays Omake-1 music: E5CA-BA34

Enabled Cheat Code Get All Weapons, In Paused, Press Up: AJ2A-AA4R

Freeze Time Continue: AJKA-AA9E

Infinite Credit: RYKA-A6T2

Infinite Left: AKWA-AA4J

Master Code: AABT-AA4J

Play Japan version on US Genesis: MTCT-AA8C

 

Enabled Hidden Options In Configuration Mode

A57A-AA2A
AX7T-AAB6

 

Prevent The Game From Freezing During Gameplay
This game will freeze when you beat some bosses or get a 1-up on certain stages. This code will fix that

AKTT-AA44
AJSA-AA6Y

 

Invincibility (Disable Hit Detection)

RZVA-A60L
RZVA-A6WY
RZVT-A6WE