are you using an Android or something like that? i'm not vary tech literate so I had to look it up, before you can even use MEGA on something like an Android you need to download the MEGA app from the app store and create a MEGA account, then you'll be able to do something like transferring it to the MEGA app and downloading it there, and it should work but I don't know the specifics, i've done it exactly once with another game.