Rapid Charge Counter (ラピッドチャージカウンター) is a counterattack used by Hatchiyack.
To perform the attack, Hatchiyack begins charging the Revenger Cannon, which makes the opponent think he is vulnerable. Then as the opponent attacks, Hatchiyack begins to pummel the opponent with lightning-fast punches, inflicting a huge amount of damage.
Hatchiyack uses this attack on Gohan and Future Trunks in the OVA Dragon Ball Z: Plan to Eradicate the Saiyans. After Piccolo gets hit dead-on by the Revenger Cannon, an enraged Gohan begins to attack the Tuffle monster, with Future Trunks' help. As Hatchiyack charges the Revenger Cannon again, the two Saiyans begin to attack, but Hatchiyack uses the "Rapid Charge Counter" attack on them, injuring them greatly and knocking them into a rock pillar, respectively.