The NFL Super Bowl LV Celebration begins in Rocket League next week The NFL Super Bowl LV Celebration begins in Rocket League next week, developer Psyonix has Rocket League Credits announced.The spotlight of this event will be the debut of a brand-new 4v4 recreation mode known as Gridiron. In this mode, the ball has been replaced with an American Football and the ball will routinely attach to the roof of a participant’s car once they touch it....