Calamity Blaster (カラミティブラスター) is a large and powerful beam of energy used by Turles.
Daizenshuu 7 refers to this technique as Kamehameha-like energy.
Turles uses this attack twice towards the end of the film Dragon Ball Z: The Tree of Might. First to counterattack the Spirit Bomb that Goku formed from what little remained of the planet's energy, thus neutralizing the Spirit Bomb. Then, Turles uses it one final time in an attempt to stop Goku's second Spirit Bomb, which contains energy from the Tree of Might, but to no avail.
Appearances in games
The attack was named Calamity Blaster in Dragon Ball: Raging Blast 2, where it appears as one of Turles' Super Attacks. However, in this video game, it is fired as an energy sphere rather than an energy wave.