Screwbot Factory

"Robot assembly is a precise task. You'll need to tighten the final screw just the right amount."

- Screwbot Factory Description (Rhythm Heaven Fever and Rhythm Heaven Megamix)

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 minigame in Rhythm Heaven Fever and the 103rd minigame in Rhythm Heaven Megamix. It features lifeless robots, called Screwbots, that move along a conveyor belt and need their heads screwed on properly. The game's sequel, Screwbot Factory 2, appears later during game progression and is the eighth sequel to be unlocked.

Gameplay
The object of the game is to re-attatch a screwbot's head onto their bodies the correct way through rhythm. Screwing them on too tight or not enough will not make them function properly. The robot arm cues vary but is usually four beats longs, it grabs a robot on the first and and places it on the fourth. Occasionally, the cue will be only three-beats long where the robot is dropped on the third beat, particularly on consecutive robots. White robots make an additional whistling cue when being lifted by the arm. The claw must grab the robot one beat after it has been placed and must be released three beats after for grey robots and two beats after for white robots.

Rhythm Heaven Fever

 * A or B: Nudge claw left or right, respectively (serves no purpose)
 * A+B: Drop Claw (start screwing)
 * Release A+B: Release claw (stop screwing)

Button Mode

 * A: Nudge claw, respectively (serves no purpose)
 * Hold A: Drop Claw (start screwing)
 * Release A: Release claw (stop screwing)

Simple Tap Mode

 * Tap: Nudge claw, respectively (serves no purpose)
 * Hold Stylus: Drop Claw (start screwing)
 * Release Stylus: Release claw (stop screwing)

Timing Notes

 * Hit: Grabbing a robots' head in time will cause the claw to start screwing immediately. Releasing at the right time will cause the robot raise its arms and for a heart to light up on it's body; this happens regardless whether the robot was grabbed in time or barely. It will also shout "Oh yeah!" for grey robots, or "Let's go!" for white robots.
 * Barely: Barely grabbing the robot with the claw causes a popping sound to be made, and will briefly drag the robot towards the claw before it starts screwing. Releasing the claw bit too early makes the robot's head stick a sideways position, with the robot frowning. Screwing on a bit too much causes the robot's body to crack, sending it down the conveyor belt with blank white eyes and a dazed stance. A barely counts as a miss.
 * Miss: Missing the robot's head entirely causes it to go by on the conveyor belt. Hitting it too early or late when you start screwing causes it to fall over backwards. Barely screwing on the robot's head causes it to fall over sideways. Screwing the head on way too much causes the body to lift up and start turning, eventually sending the broken robot down the conveyor belt as it falls over. Releasing only A or B knocks the robot to the right or left, respectively, leaving it only partially screwed.

Header

 * "Quality Report"

Try Again

 * "You made a lot of defective gray robots."
 * "Many white robots failed quality inspection."

OK

 * "Eh. Good enough." (Only in Rhythm Heaven Fever)
 * "Eh. Passable." (Only in Rhythm Heaven Megamix)

Superb

 * "You finished the gray robots well."
 * "The white robots passed inspection."

Header

 * "The foreman says..."

Try Again

 * "The grey robots were defective."
 * "The white robots failed quality control."

OK

 * "Good try."

Superb

 * "The grey robots were finished well."
 * "The white robots passed inspection."

Skill Star
The Skill Star can be collected when you screw 5th white screwbot perfectly.

Challenge Train

 * Factory Tourism
 * Beat the Pushmo
 * Rhythm no Tatsujin

Trivia

 * Screwbot Factory greatly resembles the game Fillbots from Rhythm Heaven.
 * This is the only game in Rhythm Heaven Fever that gives a unique response when pressing the B button by itself.
 * In the Japanese version, there is an engraving on the robot arm that brings up the Screwbots to the conveyor belt that said "Safety first" (安全第一). This was removed in the international version.
 * Despite being the first game in Megamix, its icon is that of the 2nd game from Rhythm Heaven Fever.
 * Screwbot Factory's japanese title in Megamix was changed to Robot Factory: Screw (Japanese: ロボット工場ネジ) due to the Fillbots being included with the same title that became Robot Factory: Oil. The title in other languages also has changed with "screw", except for the Spanish version which keeps the same name like in Fever.