Night Walk/Unused

Rhythm Tengoku
Night Walk consists of the following versions in Rhythm Tengoku:

Early Ideas
Night Walk was originally named Four Beat Keep (フォービートキープ) in development to describe the gameplay, as the player keeps four beats at a time during the game. It was also originally an Endless Game, which would keep going until the player fell off. It was later decided to include it as a regular Rhythm Game instead, with the game being given an ending.

Unused Content
Various sprites leftover from the Play-Yan media player for Game Boy Advance can be found, including the titular character standing, being defeated, crawling, a pink crab, and a yellow swan. In Rhythm Tengoku (Arcade), there are also sprites for a word balloon with a music note in it.

Rhythm Heaven Fever
Night Walk consists of the following versions in Rhythm Heaven Fever:

Regional Differences
If the player makes a mistake while jumping, a symbol is displayed rather than a heart. In Minna no Rhythm Tengoku, this symbol is "NG", as with Rhythm Tengoku. In other regions, it is replaced with the word "Miss".

Rhythm Heaven Megamix
Night Walk consists of the following versions in Rhythm Heaven Megamix:

Unused Content
Updated textures for Play-Yan depicting him standing still, and getting electrocuted, along with the Biribiriuo which appeared in Night Walk 2, are present in Rhythm Heaven Megamix, though there is no code to make use of them. The sprites for the word balloon with a music note in it also return, though it has no animations.

Regional Differences
If the player makes a mistake while jumping, the object comes out halfway and displays a symbol. In Rhythm Tengoku: The Best+, this symbol is "NG", as with previous games. In other regions, it is replaced with an "✖" symbol.