In an interview with 4Gamer (via Siliconera), the game’s director Hiromasa Shikata and the series producer Eiji Aonuma revealed that they plan to reward gamers who play the game together locally. This means that if you get your friends over to play the game instead of going online, there will be some exclusive perks you can unlock.
One of which is an item called Proof of Friendship. This allows the user to make special costumes and according to Shikata, “We’ve set it up so that you can only get it from people you’ve played with through local play or download play.”
Aonuma goes on to add, “We mainly want people to play the game’s multiplayer. This time around, with three devices and one software you’ll get to play with everyone, and have a good time, which is what we wanted to do with this Zelda. I believe that it might be difficult to gather with buddies once you’re an adult, but I hope you get to do so in order to collect some Proof of Friendship.”
So for collectors who like to collect special items that are rare, then perhaps it’s time to start rounding up your friends for a local play of Tri Force Heroes.