Hazure01

"Hazure01" is the first of three K.K. Slider songs that K.K. will play if the player makes an invalid song request in. The name of the song, hazure, is a Japanese word for "miss" or "failure," referring to the song's function in-game. This is the only name the song currently has in the game files and on official soundtrack releases.

"Hazure01" is a rearrangement of the title theme used in and, playing the melody twice with a bridge in between. It is the fifth invalid/secret song to be a rearrangement of a background track from one of the games in the series, the others being "Forest Life", "Spring Blossoms", "K.K. Island", and "Animal City."

In
In, "Hazure01" can be heard if the player makes a song request K.K. Slider and inputs something that does not match with any of his songs, as can the other two invalid songs, "Hazure02" and "Hazure03". Following the pattern of past invalid songs, these invalid songs will most likely become obtainable secret songs, likely with new non-placeholder names, in the next game in the.

The invalid songs have respective unobtainable items that, if placed in a music player via gameplay modification, will not play and default to the placeholder name けけロックとゆかいななかまたち (Keke rokku to yukai na nakama-tatchi, K.K. Rock and Happy Friends). In the player's inventory, the item's name will display as はずれ01 regardless of language.

Due to being an invalid song, "Hazure01" does not have a mood for the purpose of requesting it from K.K. However, the, which uses a song's mood to display images on its screen, is programmed to have the "Laid-back." mood as this song's image, despite the song not actually being able to be played on it.