Kuu Kuu Harajuku

'Kuu Kuu Harajuku' is an ongoing animated television series created by Gwen Stefani, originally airing on Nickelodeon/Nick Jr in 2015. The show centres around the quintet girl band HJ5, composed of the four Harajuku Girls and their leader G.

S2E1: Training Day
Having missed their train, the girls used their rocket-powered skateboards to catch up with it, only to realise they're about to crash into a billboard. They're saved thanks to their helmets' emergency airbags activating and harmlessly bouncing off the billboard.