Masendan (魔閃弾) is an energy sphere version of the Masenko used by Gohan. First, Gohan puts his hands above his head like the normal Masenko, but keeps charging it until it forms an energy sphere. Then, he grabs the energy sphere with his hand and draws it back up to his side. Finally, Gohan shouts, "Masenko!", and throws the attack at the opponent, inflicting a great amount of damage.
Gohan used this attack during the battle against Frieza in his second form. After witnessing his friend Krillin being nearly killed by Frieza, an enraged Gohan attacked Frieza with a powerful barrage of punches, kicks and rapid energy blasts, knocking the tyrant down to the ground and creating a massive dome of energy where he was lying. Gohan then charged and fired the Masendan down at the massive energy dome, creating a huge explosion and inflicting some serious damage to Frieza.
Masendan was named in Dragon Ball Z: Infinite World and Dragon Ball Z: Burst Limit as one of Kid Gohan's attacks. It also appeared in the Budokai Tenkaichi series as Kid Gohan's full-powered ki blast.