command /ninja [<text>]:
 permission: Admin
 trigger:
  if arg is "true":
   set {shinobi.%uuid of player%} to 1
   hide player in tablist of all players
   hide player from all players
   broadcast "&e%player% left the game" #ここのメッセージは自由に自鯖のログアウトメッセージに合わせてください
   send "&9NinjaMode &aEnable!!! &9AIEEEEEEEEEEE!!!!???"
  else if arg is "false":
   set {shinobi.%uuid of player%} to 0
   reveal player from all players
   show player in tablist of all players
   send "&9NinjaMode &cDisable!!! &9AIEEEEEEEEEEE!!!!???"
   broadcast "&7 %player% &ehas joined the game!" #ここのメッセージは自由に自鯖のログインメッセージに合わせてください
  else:
   send "&cError&4:&8 argが true と false どちらでもありません"
   send "&8/ninja (true/false)"

on tab complete:
 loop all players:
  {shinobi.%uuid of loop-player%} is 1
  remove "%loop-player%" from completions

on join:
 wait 1 tick
 loop all players:
  {shinobi.%uuid of loop-player%} is 1
  hide loop-player from player
  hide loop-player in tablist of player