Ninja Senshi Tobikage

In the anime Ninja Senshi Tobikage, a young Martian boy named Joe Maya becomes an unlikely hero after witnessing an interstellar battle. He stumbles upon the escaping Princess of Planet Radorio, who is fleeing the tyrannical Emperor of Zaboom and his plans for universal conquest.

With the odds stacked against them, Joe and his allies pilot three powerful mechanical beasts to defend their home. When the conflict reaches its most desperate hour, a mysterious and incredibly powerful ninja robot named Tobikage appears. This enigmatic warrior holds the key to combining their strengths, leading to an epic struggle for the fate of the cosmos.