It was built to support Grendizer, which lacks flight capabilities, and after combining, it is capable of atmospheric flight at Mach 9 and hyperspace flight. Its various weapons easily defeat Mini-Fours. Note that some weapons are unusable in this form. It can also generate a mist called "anti-radar mist" that acts as both a radio jammer and a smokescreen, but this feature is not implemented in SRW.

The Spaizer itself has considerable thrust, and in the main story, it is used in aerial combat with Grendizer mounted on top of the mecha, similar to the sub-flight system in the "Gundam Series."