Megablast was released in October 1989.
As "Master of Weapon
", Megablast was very unpopular. The main reason is the game was worse than other shoot'em ups of this period. So, most boards were withdraw.
According to a former taito developer, this game was supposed to be a four-way button game. Prototypes versions exist. Also, the ending would originaly be a battle between players, but they were not able to completed this function.
Only one soundtrack include the game's sounds (composed by Zuntata): "Taito Retro collection 5" (KDSD-00553,00554) on May 30, 2012.