Dragonball Z Episode 127: Borrowed Powers

Piccolo faces up to Cell, both having a determined look in their eye, attempting to gain the mental edge over their opponent. After a while a sudden thought hits Piccolo as he stares in disbelief, unable to believe what he is sensing from the creature. It has the KI of many powerful warriors, and he can't believe what is emitting from this creature, Goku, Frieza, King Cold, and even more. The monster speaks in a devilish voice, as he holds an innocent civilian in his hand. The civilian attempts to bribe Piccolo to make the monster let him go, but being the kind hearted Namek that he is, he does it for free, advising the monster to release the man.

The two continue to stare a hole through each other, before the monster loosens his clamp-like grip on the man, and drops him to the floor. Piccolo breathes a sigh of relief, expecting the man to be saved, but the monster isn't finished yet, as he pulls back his tail, and stabs it right into the rich civilian, slowly sucking his energy out of him, and making him wither away, eventually disappearing and leaving only a set of clothes. This infuriates the mighty Namek and he can only look on as the monster taunts him, somehow knowing his name, and thinking him to be comparatively weak. He has outdated information though. Piccolo begins to power up, and gives off a mighty blast, mainly to show off his power, rather than hurt the monster.

Back at the Kame house, no one can believe the signal that is being emitted from the monster, as they also recognise the KI signatures, and even realize that he has Goku's. Curious, Gohan flies up to the top window, and peaks inside, seeing his father in bed, and becoming confused at the situation.

Back on the battlefield, Piccolo and the monster are exchanging blows, seemingly with a huge power difference between them. The Namek is still wearing his weighted clothing, yet can easily match the monsters attacks, and beats him backwards quite a few times. In surprising move, the monster uses one of Piccolo's trademark moves - The Special Beam Cannon. The Namek manages to evade it, but can't believe that anyone could know such a skill, other than him. 

The fight continues a little longer, with Piccolo continue to show his strength and completely humiliating the monster with his display. Eventually the beast decides to resort to one of his desperation maneuvers, and begins charging up the KameHameHa. Piccolo can't believe that anyone can possibly know this attack other than Goku and the others. The monster definitely knows it though, and is preparing to fire.