Explosive Madan (爆魔弾) is a short-ranged version of the Masenko used by Gohan.
First, Gohan raises his hands above his head and charges yellow energy in his palm. He then thrusts his hands forward and fires a short, but giant yellow shock wave of energy at the opponent, inflicting a high amount of damage.
Gohan uses the Explosive Madan during his battle against Dabura in the Babidi Saga. As the demon king uses multiple Cape Swings to keep Gohan away, Gohan flies underwater, swims to directly beneath Dabura, and fires the Explosive Madan. As Dabura prepares to counter, Gohan appears above Dabura. Despite Dabura's attempts to block him, Gohan punches Dabura away and narrowly avoids getting hit by his own attack.
Gohan later uses this attack against multiple Frieza Soldiers in Dragon Ball Z: Resurrection ‘F’.