La Victoire finale

After Piccolo weakens Goku to the point where he can't lift any limbs (including the one arm his father made the mistake of leaving Goku), Piccolo flies to the sky, like his dad, to finish off his nemesis. However, unknown to Piccolo and the others, Goku can fly, and he uses the opportunity to headbutt Piccolo in mid-air for a ring out victory. Later, Goku uses a sensu bean on himself and to revive Piccolo, not wanting to jeopardize Kami's health. Piccolo shows complete contempt for this, thinking Goku to be soft, and departs after vowing to defeat Goku. (Source: Wikipedia)