Walken Song, Level 4
Walken Song, Level 4 is played on the 10th board in Ken's Labyrinth. The extracted name of song is "LABSNG09" and the original name of the song is "WALSNG04". During development, Ken's Labyrinth was titled "Walken", combination of "Walk" and "Ken". Apparently, this song was planned to be the music for level 4, but was eventually switched to level 10 somewhere in the game's creation.