An interdental cleaner which can firmly hold a dental floss that has been pulled out of a floss dispenser to a desired length, so that the interdental cleaner can prevent the floss from being further pulled out and can prevent a slip of the floss when a user uses the floss. In one embodiment, a player may purchase an entry into a bonus round of a bonus game, without first having to qualify for the entry by obtaining a qualifying outcome of a base game. The system includes a video decoder having a chroma-locked sample rate converter.