Screwbot Factory

Screwbot Factory (ロボット工場・ネジ), known in Rhythm Heaven Fever as Screwbot Factory (ロボット工場), is the 2nd Rhythm Game of the first stage (2nd overall) in Rhythm Heaven Fever and the 1st of Shop No. 5 (103rd overall), costing 4 Flow Balls, in Rhythm Heaven Megamix.

The arrange version, Screwbot Factory 2, appears in the ninth stage in Rhythm Heaven Fever.

Gameplay
The player controls a claw that is used to screw in the robot's head onto their bodies. The robots brought onto a conveyor belt and moved under the claw. The player must not only grab the robot with the claw at the right time, but also screw the head just the right amount before letting go for the robot to properly activate. Screwing them on too tight or not enough will not make them break. There are two types of robots: grey robots that must be screwed in for three beats, and white robots that must be screwed in for two beats.

Skill Star
The Skill Star appears on the fifth white robot.

Challenge Land
appears in the following Challenge Train courses:
 * Factory Tourism
 * Game Gamble: Intermediate

Trivia

 * Screwbot Factory is the successor to Fillbots from Rhythm Heaven. Both involve making robots.
 * Fillbots and Screwbot Factory share the same name in many languages. As both are present in Rhythm Heaven Megamix, their names were altered to differentiate them. In the case of Rhythm Tengoku: The Best+, Fillbots got the word オイル (Oiru) while this game got ネジ (Neji). In other languages, this game was renamed while Fillbots retains it's original name.
 * This is the only game in Rhythm Heaven Fever where pressing Ⓑ on it's own has any effect.
 * In Minna no Rhythm Tengoku and Rhythm Tengoku: The Best+, the robot arm which brings the robots up has an engraving which reads "安全第一" (Anzendaiichi).
 * The icon used for this game in Rhythm Heaven Megamix is derived from Screwbot Factory 2 in Rhythm Heaven Fever rather than the original.