I was messing with my Uni 2.0 Silverbolt the other night and noticed that he wasn't making the TF sound anymore when you push his 'spine' through his torso and the head pops up. still does it on my new henkei bolt. I'm worried that the generally violent action of pushing his head up has worn down a trigger or pulled a wire loose. has this happened to anyone else and have had to fix it or does anyone know how to pop him open and see whats going on? i don't see screws anywhere.