LOS ANGELES–(BUSINESS WIRE)– #KartRider–Racers prepare to party with over 23 million players as KartRider Rush+ celebrates its one year anniversary with new content available today. This celebration features new Season 7 content including new karts, characters, tracks, and costumes with exclusive LINE FRIENDS characters and content featuring fan-favorites BROWN and his friends including CONY and SALLY to commemorate the special occasion! The KartRider Rush+ one year anniversary celebration comes with a m