Street Fighter II′ - Champion Edition, known in Japan as Street Fighter II Dash (ストリートファイターⅡダッシュ Sutorīto Faitā Tsū Dasshu?), was released on April 1992. It was the first of several updated versions of Street Fighter II, hence the Japanese title Street Fighter II Dash, a derivative of the original Street Fighter II. The four boss characters from the first edition became selectable characters and a feature was added that allowed two players to select the same character, with one character being distinguished from the other with an alternate color scheme. Characters using their alternate color scheme have their names printed in blue below their lifebar. The number of opponents in the single-player mode increased to twelve due to the addition of clone matches. Some of the artwork was redrawn as well and the stages' backgrounds were recolored. Much of the gameplay was revised to balance the characters out. From this edition onward, the maximum number of rounds was reduced to four rounds)