Hudson Best Collection Vol. 4: Nazotoki Collection (ハドソンベストコレクションVol.4 謎解きコレクション) is a compilation of Hudson Soft's titles released in December 2005 for the Game Boy Advance exclusively in Japan. It is also the fourth compilation of the six of the collection. Nazotoki roughly translates into the solution of a riddle, and this compilation focuses on puzzle type games.