Without a single CPU, Motor, Battery and Memory , the core skeleton itself will be inoperable. Only with the right parts for a preferred battle style and great durability against its elemental weaknesses can the LBX model be ready for battle. The extra parts give increased statuses and higher endurances against elemental properties.
- Default = Small Size
- Level 15 = Medium Size
- Level 35 = Large Size
In Danball Senki W (PSP), the list has upgraded to where Maintenance Items are required to expand core box size. In addition towards all LBXs can activate a Special Mode, the mode would require its corresponding extra part to be inserted for activation.