Choujuu Kishin Dancougar
Emperor Muge Zarbados and his Empire of Death decide that their next conquest will be the faraway planet of Earth. Muge becomes even more fearsome because of Shapiro Keats, a power-hungry Earthling-turned-traitor. It's up to Shinobu, Sara (Shapiro's old girldfriend), Masato, and Ryo of the Jyusenkitai/Cyber Beast Force to pilot the four Jyusenki/Beast Mecha (Eagle Fighter, Land Cougar, Land Liger, and Big Moth [a mammoth mecha]), which can combine into the giant mech Dancougar.
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Choujuu Kishin Dancougar: Hakunetsu no Shuushou
After all the battles the Jyusenki-tai has been through, they have gone on their own separate ways. But one person will bring them all together again: Shapiro Keats. The man who sided with Muge Zarbados all the way back in the beginning is still...