Clone Hero

[3] Unlike the Guitar Hero series, by default there is no penalty for missing notes, aside from breaking a combo, making it impossible to fail a song, although there is an option to enable this.

Successfully playing the marked section will reward the player with star power, which can be used to double the combo multiplier for a limited time.

[6] The game instead largely relies on the ability to play community-made songs, called "charts".

[2][3][6][7] Unlike games in the Guitar Hero series, these songs do not need to be original compositions, and can instead be any audio file a member of the community wishes to turn into a playable chart.

[7] The freedom offered by the game's system has also spawned many charts that are created as brutal challenges to other players, far beyond the difficulty of anything in the standard Guitar Hero series.

Clone Hero started as a small project of Ryan Foster's in 2011,[2] then called GuitaRPG, built in the XNA engine and bearing simple, 2D graphics.

Against a black background, there is a black rectangle, foreshortened to look like a highway. At the bottom, there are five empty colored circles. Circular notes are falling down the highway and landing over the slots of matching color. Attached to the side of the highway is an x3 multiplier, and a blue meter, partially filled. A blue progress meter, a point counter, a star with a counter in it, a star completion bar, and an orange combo counter are held in a small clump of elements to the right side of the highway.
Screenshot of guitar gameplay, showcasing notes on the highway; the hit window; song progression, star, and star power meters; point, star, and combo counters; and the combo multiplier.