Oh, that makes sense. This would be possible, but you'll need to save all necessary data into text files with the extension's "save text" block (not the built-in "save game" block). Then you will need to build a system to load the files with the extension's "load text" block, and use the data to dynamically change the game (set game attributes, for example). Now the data files can be freely copied from one device to another, as long as the other device has the same game installed. (It may be easiest for the player if everything is stored in one specific file or folder.)