Cytus

Synopsis
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.

Economic Model
Cytus is a free to play with an prenium status that allow to skip waiting screen and advertissement.

Gameplay
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. 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.