Duluth, MN (NNCNOW.com) --- An arena full of robots isn't something you see on a regular basis.
But this weekend's Robotics' competition in Duluth has brought teams to the Northland from all over the country.
Robotics teams battled it out at Saturday's final rounds of the competition at the DECC in Duluth.
The teams spend six weeks constructing a robot that can pick up and throw a beach ball across the arena, then go on to compete against over 50 other teams.
Competitors say prepping for the competition takes a great deal of energy.
"It's a lot of hard work... It's a lot of early morning hours. Sometimes it feels like it's just worthless, but when you get here and you're all competing with everybody it's just amazing," said competitor Teddy Payne.
A total of six teams from the competition will go on to compete at the world championship in St. Louis, Missouri on starting April 23rd.