How To Spray Plastic Panels What Is The Best Way To Get Spray Paint Off Of A Blue Plastic Bed?

What is the best way to get spray paint off of a blue plastic bed? - how to spray plastic panels

My mother painted a bed for my son, but not really, and now I like the color, there is only one panel painted red and the rest is blue. How do I get from the red, without affecting the Placticamos blue?