In game, there is a four-lane highway (just like the On Tour series) instead of the five-lane highway like the console games. To play regular notes that comes down the highway, press the note when it reaches to the note catcher. There are also hold lines (also known as "long notes" or "sustain notes"). At the end of a note if there a line, hold the finger down until the end of the line. If the finger is lifted off the screen while the line is still going, it will cut the sound and the note. You can whammy the lines to earn Star Power, even if your not in a Star Power combo. There are also chords in which the player press two notes at the same them when they land on the note catcher. However, there are no chords in which the notes are adjacent in the iOS. Instead, there are strum notes, whi