Can end users specify where to save games' data?

Question

This freeware Unity Engine game saves in Windows its data at:

1. %USERPROFILE%\AppData\LocalLow\Turbo Chimp
2. %USERPROFILE%\Documents\Turbo Chimp
3. The registry key HKEY_CURRENT_USER\SOFTWARE\Turbo Chimp

Are there general Unity command line parameters that might allow specifying different paths (e.g. game.exe -save_to=c:\games) or allow to use a file like game.ini to specify where to save?

This is because I prefer to run programs in a portable way (if all else fails, I will create a portable launcher that will remove leftovers upon closure).