The BFFL 10th Anniversary Trollz-a-thon was a 8-hour Trollz marathon that aired on UltraToons Network on Thursday, October 1, 2015 from 8:00 AM to 4:00 PM. The block was meant to celebrate the show's 10th birthday that featured the main characters (Best Friends For Life) from the series named Amethyst van der Troll, Ruby Trollman, Topaz Trollhopper, Sapphire Trollzawa and Onyx Von Trollenberg. The marathon featured every episode of the series, including a new episode of Get UltraToonED, "When Trollz Attacks!".