Bandai Machine Robo MRG Evil Six-Demon Beast Devil Saturn Monsterous Gobots .

This is the Japanese version of monsterous. The colors are darker and more muted

The figure is 100% complete but never had any actual accessories. Just the basic robots

That being said, five of the six robots are in really good shape and have tight limbs. The red arm with the wings has very loose limbs.

There is some chromeware here or there. But in general if I swap those pieces out with the regular one