Meg Donnelly and Milo Manheim are proving they truly are the best of friends!

The Zombies 2 co-stars played a round of the Best Friend Challenge to see just how well they know each other.

PHOTOS: Check out the latest pics of Meg Donnelly

During the game, Milo had to answer questions about Meg – including her biggest fear, her spirit animal, and her childhood nickname.

Zombies 2 will premiere on Disney Channel in 2020!

READ MORE: ‘Zombies 2′ Co-Stars Meg Donnelly & Milo Manheim Give Sneak Preview at Disney Channel Holiday Party (Exclusive)