Busgirl

Adora
While Adora is being influenced by the First Ones' tech that Entrapta was attempted to decode; causing her robots to become evil, Busgirl and her friends were influenced by Bow to help find her and stop the evil robots from attacking.

Baker
Baker and Busgirl work together with Soda Pop, making tiny food for Entrapta because she only eats tiny foods. Later she saves Baker and Bow by opening a cabinet she was hiding in and slamming it into one of the attacking robots.

Bow
Busgirl and her friends helped Bow by silencing him and bringing him to the kitchen in order to keep the robots from getting to him. Later, Bow teaches the three of them that just because they aren't princesses, doesn't mean they're useless; they can still help defend their land.

Entrapta
Busgirl works for Entrapta along side her two friends Baker and Soda Pop, making tiny food since that's all she likes to eat. After Entrapta's experiment with the First Ones' tech fails and turns her robots against the city, Busgirl, her friends and Bow end up all working together to save the princesses.

Glimmer
Busgirl helps Glimmer by keeping the evil robots distracted, while she keeps Adora safe from harms way.

Soda Pop
Busgirl and Soda Pop along with Baker and all work together, cooking tiny food from Entrapta. When Entrapta's experiment goes awry, Busgirl and Soda Pop fend off incoming robots in the kitchen with Bow and Baker. Once Bow convinces the three of them to help the other princesses, Busgirl and Soda Pop make combo attacks against the robots to keep them distracted.