Keypin are just used by Reapers to open up the walls that stop the players in the Reapers' Game.
There is certain levels to the keys, refering to certain areas in the game.
The World Ends With You
The wiki has been targeted by a days-long vandalism campaign. We are trying our best to deal with the vandalism and may have to lock down the wiki for some time. More details here.
READ MORE
Keypin are just used by Reapers to open up the walls that stop the players in the Reapers' Game.
There is certain levels to the keys, refering to certain areas in the game.