Popo is controlled with left and right. Nana is controlled with A and D. Dodge the falling snow. You start on the left of the screen.
Snowball sprite from Google, Nana and Popo from here: https://scratch.mit.edu/projects/131602/ I learned how to have random falling objects from here: https://scratch.mit.edu/projects/131602/ Nana and Popo from Nintendo.