Thunder Force IV
Thunder Force IV stands as a defining action title on the Sega Genesis. With polished gameplay mechanics and memorable level design, this classic delivers an experience that has stood the test of time.
- Developer
- Technosoft
- Released
- 1992
- Platform
- Mega Drive
- Genre
- Action
- Players
- 1P
- Rating
- 4.8 / 5 (2.2K)
- Last updated
Thunder Force IV Controls — Mega Drive Keyboard Keys
Default keyboard bindings for Thunder Force IV on our in-browser Mega Drive emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | D-Pad Up | Move up |
| ↓ | D-Pad Down | Move down |
| ← | D-Pad Left | Move left |
| → | D-Pad Right | Move right |
| X | A | Primary action (jump / confirm) |
| Z | B | Secondary action (attack / cancel) |
| S | C | Tertiary action |
| A | X | Quaternary action |
| Q | Y | Fifth button |
| W | Z | Sixth button |
| Enter | Start | Start / Pause |
These bindings cover the 6-button Mega Drive controller. Most older titles only use buttons A/B/C; the extra X/Y/Z buttons matter for Street Fighter II and other 6-button fighters.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Thunder Force IV Longplay & Gameplay Videos
Watch a full playthrough of Thunder Force IV on Mega Drive before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Thunder Force IV" Mega Drive longplay 1992
Thunder Force IV Cheat Codes
14 community-curated cheats for Thunder Force IV. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
-
Region Lockout Bypass
AACA-AR86 -
Master Code
AABT-AA5JAABT-AA4J -
Prevent The Game From Freezing When You Beat Bosses or Get 1-Ups.
AKMT-AA6W+AJTA-AA20AKTT-AA44+AJSA-AA6Y -
Infinite Lives
FFF2F1:0004 -
Invincibility (Disable Hit Detection)
RZWA-A6WT+RZVT-A604+RZWA-A60LRZVA-A60L+RZVA-A6WY+RZVT-A6WE -
Freeze Time Continue
AJKT-AA9T -
Enabled Cheat Code Get All Weapons In Pause Press Up
AJ2T-AA8T -
All extra/bonus music (Ending, Omake, etc) is available in the option screen
RH9T-A6WGRH9T-A61W -
Play Japan version on US Genesis
MTCT-AA8C -
Infinite Credit
RYKA-A6T2 -
Infinite Left
AKWA-AA4J
Show 2 more cheats Show fewer
-
Enabled Cheat Code Get All Weapons, In Paused, Press Up
AJ2A-AA4R -
Enable Have all Weapons Cheat (Pause the game and Press Up)
FFF339:0001
External references
Frequently Asked Questions
When was Thunder Force IV released?
Thunder Force IV was released in 1992 for the Mega Drive.
Who developed Thunder Force IV?
Thunder Force IV was developed by Technosoft, available to play in your browser on RetroGameSpace.
How many players does Thunder Force IV support?
Thunder Force IV is a single-player Action game for the Mega Drive.
What type of game is Thunder Force IV?
Thunder Force IV is a Action game for the Mega Drive, playable instantly in your browser — no downloads, no installs.
How can I play Thunder Force IV for free?
Open this page and click "Play Now" — Thunder Force IV runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Thunder Force IV in the browser?
No. Thunder Force IV streams from a public archive into a browser-side Mega Drive emulator. Nothing is installed on your computer.
Can I save my progress in Thunder Force IV?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Mega Drive cartridge supported.
Does Thunder Force IV work on mobile devices?
Yes — the Mega Drive emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Thunder Force IV this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Thunder Force IV. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
