wave rider
The fighter-like alternate form of Zeta Gundam as well as its derivatives such as the Zeta Plus.
While in this form, the Zeta Gundam is granted not only enhanced speed and mobility, but also the ability to make an atmospheric re-entry from space on its own without the aid of ballute packs or other external re-entry systems. Thanks to the Biosensor System installed on the Zeta, the Wave Rider Mode can be used as a deadly weapon called the Waverider Crash if said system is activated.