The final competition of the year has 75 school teams anxious. Saturday is the fourth and final competition of the Regional Autonomous Robotics Circut. The RARC is a series of four robotics competitions offered by the Cyber Innovation Center in partnership with Bossier Parish Community College, Louisiana Tech University, Sci-Port: Louisiana's Science Center and Bossier Parish Schools. Teams will have to use the skills they've developed in the first three contests as they compete in three separate mystery challenges throughout that morning. The 75 teams are from area elementary, middle and high schools. Doors open at 7:30 Saturday morning, and the competition gets underway at 8:15. The public is invited. Grand champions get technology awards for their schools and pizza parties for their teams.