A Written Request to the Detective Boys
Shōnen Tanteidan e no Iraisho
Hurry! The Detective Boys
Isoge! Shōnen Tanteidan
Investigation Legwork
Kikikomisōsa
Thrilling Pursuit
Tsuiseki Suriringu
Cheerful Friends
Yōki na Nakama
Everyone's Fun Mushroom Hunting
Minna de Tanoshiku Kinoko Kari
A Group of Three Very Close Friends
Nakayoshi 3 Ningumi
Vacation Feeling
Bakansu Kibun
Heartwarming Feeling
Honobono Kibun
The Group of Three's Conversation
3 Ningumi no Kaiwa
Genta's Theme
Genta no Tēma
Mitsuhiko's Theme
Mitsuhiko no Tēma
Sentimental Ayumi
Osenchi na Ayumi
Ai's Theme (TV Version)
Ai no Tēma (TV Vājon)
Sorrow
Aishū
The Ruins of an Abandoned Building
Haikyo no Kan
Keyword to the Riddle Solution
Kiiwādo no Nazotoki
The Trick to Deciphering the Code
Angou Torikku no Kaidoku
Search for the Key!
Kagi o Sagase!
Night Search
Yoru no Tansaku
What is this a trace of?
Nanda Kono Konseki wa?
Labyrinth
Meiro
A Sad Affair
Kanashii Dekigoto
Mystery
Shinpi
Error of the Past
Kako no Ayamachi
Parting
Wakare
Friendship
Yūjou
The End of a Case
Jiken Ikken Rakuchaku