[Tutorial] Simple way to play multiplayer using Tunngle

[Naggy]

I followed all the steps for Phantasy Star Portable 2 Infinity to work in the adhoc multi but i just cant get pass the "Form a Party" part,the other player wont show up in the list maybe the game isnt compatible or i missed something?And how should we start the game?Using Tunngle by creating a shortcut?

Sorry for my grammar if it lead to any misunderstanding as English isnt my native language