It's a mobile miniradio tower ship with a drill pincer nose cone. This is the boss of Invasion in R-Type Delta. This Bydo machine drops missiles onto attackers, which must be carefully evaded. Once defeated, a R-9 imprisoned in the Collector will go free.
The R-9 released at the end of the battle could be the reason why the Space Corps HQ is infested with Bydo, as a similar ship is docked near the end of the stage which attacks invaders with two other infected R-9s.