Just a quick add, when you're playing on the same WiFi network as your friends, you don't need any of the external IP stuff in this thread.
So playing on the same WIFI network could be a good way to see how you like the gameplay, before going into hardcore gamer networking to get remote play working.
Of course, everything discussed here works for a ton of games. So it can be well worth the effort to figure out, if you find the time.
Ah. Makes sense. Yeah. I can't imagine a MineTest configuration that would play well on an Android console - at least the one I had. I had poor luck doing much with my Android console (before it died) outside of what came with it.