The Robot-Blizzard was Roméo Mécano's self-created invention and the antagonist of Les Pyjamasques picture book series.
It was originally invented by Roméo Mécano. However, since it had a large hostility than his creator, Roméo Mécano decided to dump it near his factory where it was repaired by the Les Pyjamasques who were in a desperate search for a villain. However, the Les Pyjamasques and Roméo Mécano were forced to work together on destroying Robot-Blizzard.
- It can throw large snowballs that can trap the opponent in it and spits an avalanche of flakes from its snow cannons, developed by Roméo Mécano.
Like Robette's red-eye mode behavior, Robot-Blizzard was very uncontrollable which can't be stopped by anyone as it is a hundred times stronger towards any opponents.