Maddie Messer is 12 years old. She loves science, her dog, and a good video game. One of her favorites is the mobile game Temple Run.
In Temple Run, you run along a path through a swamp or a forest, while being chased by a tribe of fierce monkeys. Maddie loves the game, except for one thing: Her character is a guy.
In a lot of video games, the default character is a guy. If you want to play as a female character, it's not easy. Often you have to pay.
"It's not fair," Maddie said. "Because if I'm being forced to play as a boy, like, why?"