Fast as a cheetah! Agile as a panther! Able to hear the smallest noise in places around! Like a cat, he is also afraid of water! But when the adventure calls him, "the fabulous Yoyo leaps to the rescue!" When a mission comes up, Sacha becomes Yoyo! Leader of the group, Yoyo is also the eldest of Les Pyjamasques. Certainly, it only plays two to three months. But when you're seven, a few months, it's not nothing! In his cat pajamas, Yoyo shows incredible speed (he can travel great distances at lightning speed) and agility (he can jump easily from one perch to another in precarious balance). He also has exceptional hearing acuity that allows him to hear the most distant sounds thanks to his "Oreilles de chat!" His powers: Speed! Giant leaps! A super fine hearing!
Sacha takes enjoyment on being curious and observing towards things that may interest him during school. He can be easily scared at times; this was especially emphasized in La Légende des Pyjamasques.
He is shown to be the most courageous member of the Pyjamasques. Unlike Catboy, Yoyo he doesn't seem to prefer to have his own way at all, and tends to not act in a superhero's vigilante tone at all. He is also shown to also give out morals and lessons to others who are facing problems, despite him making his own mistakes at other time.
He doesn't even speak in the English language and instead speaks in French.
Sacha has a blue teal shirt and pants is darker in tone and his T-shirt is blue. And he wears white sneakers with blue shoelaces like European Greg and his vigilante counterpart who shares the same name as European Greg. He also has brown eyes in color, but was previously to have blue eyes before the events of "Les Pyjamasques et la momie d’Apophis, Tome I".
During the night, his pajamas consist of a traditional stripey white and blue shirt and pants.
As Yoyo, he has blue eyes instead of brown eyes. He wears a light blue one-piece suit resembling a cat with ears, a tail, and many dark blue stripes. The costume leaves an opening for the lower portion of his face.
Powers and Abilities
Yoyo Acrobasaut: Can jump really high.
Yoyo Rapido: Can run really fast at lightning speed.