Cytus

Cytus
Cytus 2.0 Title Screen
Developer(s)	Rayark Games
Publisher(s)	Rayark Games
Platform(s)	iOS, Android, PlayStation Vita (PlayStation Mobile)
Release	January 12, 2012
Genre(s)	Rhythm game
Mode(s)	Single Player

Cytus is a rhythm game developed by Rayark Games, an independent game developer in Taiwan. It was first released on the iOS platform on January 12, 2012. The game was later released on Android on August 7, 2012. A port for PlayStation Vita and PlayStation Mobile, titled Cytus: Lambda, was released on June 26, 2013. An arcade version titled Cytus: Omega in collaboration with Capcom is revealed at JAEPO in February 2015 and is set for location testing in July 2015.

The name Cytus is taken from Cocytus, the Greek mythological river of wailing or lamentation.Cytus features a story plot that is carried through its 10 main chapters as well as a prologue. The story revolves around the protagonist, Vanessa, who lives in a 22nd-century world where robots with human memories are the only remaining sentient beings while living humans are killed by a mutant virus. Due to limited memory space, human emotions are stored in the form of music in "Cytus", and by playing the songs, the robots are able to revive their human emotions. The plot features the disaster and the protagonist's struggle with identity. The story is told in-game through various cut-scenes that are unique to the chapter title songs; in comparison, the other individual songs within each chapter are at most only marginally relevant to the plot, except for a limited few.

The main gameplay of Cytus features the Active Scan Line, a black line that move up and down across the screen. The player taps circular objects, referred to as Notes, as the Active Scan Line passes over them, following the music.

Three types of Notes are used. The Click Note, a single circular note, requires tapping the object in time. The Drag Note, a continuous track of notes, requires dragging along the track. The Hold Note, a note with an extended ribbon meter, requires holding over the note until the meter is filled. Notes to be hit as the line rises are colored blue and purple, while those as the line drops are colored yellow and green.

Each Note is judged by the accuracy to be either Perfect, Good, Bad or Miss. The better the accuracy, the higher score is given. The maximum score is 1,000,000, and a minimum of 700,000 is required to clear a stage. Basic score is 900,000, the score is divided equally into every note. Combo score is 100,000, the score is proportional to square of the maximum combo. Also, the maximum TP score is 100, and TP Perfect, NM Perfect, Good, Bad, Miss is calculated 100%, 70%, 30%, 0%, 0%, respectively. After a stage ends, various metrics are provided to show the player's performance, including score, TP, a letter grade, and numbers of hits in each type of judgement. Score system is referred: Fail below 700,000, C below 800,000, B below 900,000, A below 950,000, S below 1,000,000, Million Master at 1,000,000.