She first appears at the podium in Roarsville, making her speech about becoming the city's new mayor (Swifty Hugglemonster was the previous mayor). Just as Roariani was about to read from the rule book, Captain Hollander arrived to take her to the monster mayor's meeting in Growlsburg. Roariani left someone else in charge until she returned. Everyone agreed to put Henry in charge of the rules.
When Mayor Roariani returned from the meeting, she arrived to find Roarsville in a mess. Henry explained how hard it was to be a mayor and how everyone had trouble with the rules. Everyone volunteered to restore the city to the way it was, but Roariani allowed them to keep the hugglejuice fountain Cobby had built earlier. She later shared a cup of hugglejuice along with Henry.
Have a Henry Hugglemonster Day • Open Up, Flower • Happy Hugglemonster Day • Super Summer Sleepy Song • Close Your Eyes, Ivor • The Summer Song • The Roar Off • Gotta Get a Grip • The Ballad of Beckett • The S'more Roars Song • Summer's Birthday Song • Roar it Up! • Number One Fan! • Welcome to Our Home • The Sneezo Story • Huggleball Anthem • The Stuck Inside Blues • Flutterby/Powerdrive Mash-up Mega Mix • Huggletastic Hugglejuice • Robot Groove • Momma Monster Mia • About a Shoe • The Summer Swirl • Roartastically Beautiful • I'm Working • Hugglemonster Manners • Wanna Touch the Sky • Being Big's Roarsome and How • Monster Heart • Grrrrls Just Wanna Roar • The Roaring Lion • Who Needs a Fang? • The Hugglemonster Way • The Pirouette Song • Time Zooms By • My Brother • Heromonsters Woohoo! • The Friendliest Place Ever • To Monsterschool • Summergrams for You • My Happiest Day • I've Got Pizzazz • Save the Glimmergrove • Dare to Scare • Big Big Baby • You Go Well Together • Catch That Cake • More Than One Way to Save the Day • Make Your Own Fun! • So, So Roarsome • Everybody's Good at Something • Knit it Up • Play By the Rules • That'll Be a Happy Huggleween • One Small Stomp • The Monster Moon • When I'm Frightened • Roarsville Rovers Anthem • We've Got the Bug for a Birthday Bash • Bubble Huggin' • K-Growl Jingle • Every Word That I Say • Everything That You Are • Baby Bro Blues • Close Your Eyes • Our Way is Better • No One Way is Better • Monster Holiday • Jingle Howls • We Wish You a Happy Hugglemas • Hugglemas Carol Medley • Dress Up Disaster • Dress That Disaster Away • The Dudes' Day Duet