A true testament to Ging's skills in offensive Nen was given when he was attacked by Muherr's henchmen. On that occasion, he copied Leorio's
Remote Punch perfectly and at the first attempt.
He later explained he can mimic other people's techniques. Not all of the conditions are revealed, but one of them is that he must be struck by the attack at least once, if it is physical. However, he explained it is merely a natural talent, not a Nen ability. Deducing how Leorio must have created his ability, Ging devised, basing on his own speculations, a method to detect people which consists in spreading one's aura like ultrasounds, and again he succeeded in using it at the first attempt. Since he deemed this technique to be stealthier than
En, it is very likely he can also use En. He also showcased above-average proficiency in the Emission category by hurling two large projectiles of Nen at the same without seemingly needing to charge them.