After using the machine to transfer energy (~20m in), Nandor's right forearm swaps between up and down several times between shots.
Colin Robinson refers to a "decommissioned landmine" exploding. Decommission synonyms are -- deactivate, demilitarize, retire, make inactive, shut down, and shut off/shut out -- which would infer a landmine is active, not decommissioned, if it can explode.