Hi there!
You can locate and delete the settings file to restore them to their default values if you can't set them in-game.
- On Windows, control settings are saved in a ControlBindings key located in the registry at HKEY_CURRENT_USER\Software\ChrisChung\Catlateral Damage
- On macOS, the settings are located at your ~/Library/Preferences folder, in a file named unity.ChrisChung.Catlateral Damage.plist
- On Linux, the settings are located at ~/.config/unity3d/ChrisChung/Catlateral Damage
Chris