From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
The Blaster Meteor (ブラスター メテオ, Burasutā Meteo) is an energy sphere attack used by Legendary Super Saiyan Broly. Legendary Super Saiyan Broly makes a fist in each hand and raises them into the air and back down as he forms a green Energy Shield around his body. He then brings his hands apart to each side and releases many powerful green energy bullets that home in on the target, inflicting a massive amount of damage. This attack is also a Meteor Attacks.
In Dragon Ball Z: Budokai Tenkaichi 3, Nuova Shen Long's Ultimate Blast is also called the Blaster Meteor, with several notable differences. Nuova Shen Long creates a Supernova and sends it up into the air. He then scatters the smaller fireballs at his opponent, inflicting a great amount of damage.