First, Hatchiyack charges green energy for 15 seconds like the standard Revenger Cannon, however, instead, he fires many small and much weaker Revenger Cannons one after another, creating lots of explosions and inflicting a great amount of damage.
Hatchiyack uses this attack during his brief one-on-one with Goku in his Super Saiyan form. After Hatchiyack knocked Future Trunks and Gohan out of the battle, Goku is the only Z Fighter standing. He tries to attack Hatchiyack, but the Tuffle machine counters the attack and begins to charge the Revenger Cannon. It is then that Goku figures out the weakness and he counts to 15. Hatchiyack fires the Energy Wave Combo spheres at Goku, who dodges every one of them, which creates a chain of explosions. Hatchiyack then cleverly dodges a punch from the Saiyan and knocks him on a rock pillar.
Appearances in games
Hatchiyack uses this technique in the NES game Dragon Ball Z Gaiden: Saiyajin Zetsumetsu Keikaku, where it appears under the generic name Continuous Energy Wave. The technique was named Energy Wave Combo in Dragon Ball: Raging Blast 2, where it is one of Hatchiyack's Super Attacks; the move is performed differently than in the movie, as Hatchiyack fires the energy spheres with his hands in similar fashion to Broly's Eraser Shot Volley. In Dragon Ball Z: Attack of the Saiyans, Energy Wave Combo is the name of Goku's Super Energy Wave Volley technique.