Capable of destroying most forms of matter through meson annihilation. Proved to be too dangerous for GaoGaiGar's use, as a Zonder Core could also be destroyed upon contact with it, killing the host being inside. Following evaluation, the tool was scrapped and stored aboard Futsunushi. This tool required a GS-Ride system to activate, which was not installed onboard the tool at time of use (against the BioNet-created machine G-Gigantesque); the cyborg Renais Kerdif-Shishioh volunteered to use her own portable GS-Generator as a substitute power source.