Memoirs of the Angst-Bitch

So I think I fail at life when it comes to my Lelouch figma. The picture shows that I can take the head off the neck post or whatever to switch with the Zero helmet. But I just can't figure out how. I've figured out everything else. I don't even really want to put the Zero mask on it; I just want to know that I can do it and that the evil box and its evil picture instructions aren't lying to me. Because I'm starting to think they are. Truth be told, I prefer sticking the Zero helmet on the cat.