The Nintendosian Age Rating System

The Nintendosian Age Rating System (任天堂の年齢評価システム, Nintendō no nenrei hyōka shisutemu, NARS for Short) is The First Age Rating System for Games (all the way before the ESRB)

Trivia

 * The ratings Greater or Equals 14+ are banned in 1985 due to the law.