Extra parts include 8 extra hands, two versions of the Sonic Arrow and the other Energy Lock Seeds namely Cherry, Peach and Melon with their matching chest accents. The design of the plates varies showing the inside or exterior of the fruit/berry motif. Also each plate is held by one ball joint which allows some kind of breathing room for the extremities to move. Finally just like Zangetsu Shin, you can use any of the Lock Seeds on the Genesis Core and the on the Sonic Arrows.
As it is, Jimber Arms falls under the category of good to have but not an immediate buy. It has the characteristics of Zangetsu Shin but the plates do limit some movement on the figure. For the most of it, Jimber Lemon Arms is elegant next to the rest of the riders. If I would to choose, I’d prioritize other upgrades first before rushing to purchase Jimber Lemon Arms.