Yup the knives are the best accessory. They give a street thug feel, like 3 sociopathic punks waiting around the corner after school to take your lunch money and gut you. Only they don't take your money... that was just an excuse. I can see what people are talking about with the hip skirt issues. The skirts felt like they weren't supposed to move the first time I pulled them away from the legs since they were so tight. Also had to pull harder than I felt was necessary to get the arms fully extended for bot mode but still overall very happy with the purchase.