This boss has four revolving armors. He fires sharp rocks at varying speeds.
Illuminator
Illuminator is the boss of Space in Super R-Type. It is a fast-moving mechanoid that attacks by shooting Bydo Shots and deploying orb-shaped spheroids. The entire unit is surrounded by four revolving cube-shaped armors that function similarly to Bit Devices.
See also
Trivia
It is possible that it could also be a successor to the Bellmite from R-Type or at least a variant of the same enemy except with different functionality and strange attack patterns.