Meccha Chameleon Invert Mouse

Q: What Game.ini line inverts the Y axis?

The player-reported workaround uses InputPitchScale=2.5 under [/script/engine.playercontroller]. Game updates may change this behavior, and the exact feel may vary by setup.

Q: Can Game.ini invert the X axis too?

Some players report adding InputYawScale=-2.5 to invert horizontal camera movement. Only add this line if you also want X-axis inversion.

Q: How do I revert the Game.ini workaround?

Close the game, return to the same config folder, delete Game.ini, and start the game again.

QUICK ANSWER

Current Invert Mouse Workaround

Use the temporary Game.ini workaround if the in-game settings do not provide the invert option you need. Add the Y-axis line first, test it, and add the X-axis line only if you also want horizontal inversion.

This is not an official menu setting, so back up your changes and be ready to remove the file if a game update changes the behavior.

BEFORE YOU EDIT

Use This Carefully

This is a config-file workaround, not an official in-game toggle.
Close the game before editing the file.
If something feels wrong, delete the Game.ini file to revert.
Game updates may overwrite, ignore, or change this behavior.
Do not download random invert-mouse mods, DLLs, EXE files, or cheat tools.

CONFIG FOLDER

Where to Put Game.ini

Open File Explorer and paste this into the address bar:

%LOCALAPPDATA%\Chameleon\Saved\Config\Windows

If the folder does not exist, start the game once, close the game, and check again.

CREATE THE FILE

Create Game.ini Correctly

Inside the config folder, create a text file and rename it to:

Game.ini

Important Windows note: if file extensions are hidden, Windows may accidentally create Game.ini.txt. In File Explorer, enable View > Show > File name extensions, then confirm the file is really Game.ini, not Game.ini.txt.

INVERT Y AXIS

Player-Reported InputPitchScale Workaround

For Y-axis inversion, some players report using this in Game.ini:

[/script/engine.playercontroller]
InputPitchScale=2.5

InputPitchScale affects vertical camera movement. The exact feeling may vary by setup, and game updates may change this behavior. If it feels reversed the wrong way after an update, remove the file or adjust only if you know what you are doing.

OPTIONAL X AXIS

Invert Horizontal Camera Movement Too

Only add the X-axis line if you also want horizontal inversion. Some players report using InputYawScale=-2.5 for that.

[/script/engine.playercontroller]
InputPitchScale=2.5
InputYawScale=-2.5

InputPitchScale affects vertical camera movement. InputYawScale affects horizontal camera movement.

SAVE AND PROTECT

Save and Set Read-Only

Save the file.
Right-click Game.ini.
Open Properties.
Check Read-only.
Click OK.

Some players report that setting the file to read-only can prevent the game from deleting or overwriting the file. Treat it as a setup-dependent extra step and remove read-only if it causes problems.

IF IT DOES NOT WORK

Troubleshooting the Workaround

Make sure the file is Game.ini and not Game.ini.txt.
Try launching the game once before creating the file.
Some players report better results by copying an existing config file first, renaming it to Game, launching the game, closing it, then renaming it to Game.ini and setting it to read-only.
This workaround may only affect camera control, not every mouse behavior.
If it still fails, remove the file and wait for an official setting or update.

REVERT

How to Undo the Workaround

Close the game.
Go back to %LOCALAPPDATA%\Chameleon\Saved\Config\Windows.
Delete Game.ini.
Start the game again.

If you set the file to read-only, remove that file instead of trying to stack more edits on top of it.

FAQ

Invert Mouse FAQ

Does MECCHA CHAMELEON have an invert mouse setting?

A simple native in-game invert mouse option is not confirmed for every setup. Some players use a temporary Game.ini workaround, but it is not an official menu setting.

What Game.ini line inverts the Y axis?

The player-reported workaround uses InputPitchScale=2.5 under [/script/engine.playercontroller]. Game updates may change this behavior, and the exact feel may vary by setup.

Can Game.ini invert the X axis too?

Some players report adding InputYawScale=-2.5 to invert horizontal camera movement. Only add this line if you also want X-axis inversion.

How do I revert the Game.ini workaround?

Close the game, return to the same config folder, delete Game.ini, and start the game again.

Should I download an invert mouse fix?

No. Avoid random invert-mouse mods, DLLs, EXE files, cheat tools, or unknown patches. Use Steam, local config files, and safe troubleshooting only.