Why do rhinoceros warriors blacken?

Trying to usurp the throne and seize the position of Tyrannosaurus Rex. As we all know, Tyrannosaurus Rex is cunning and good at tricks, but the simple rhinoceros warrior is like his nemesis, which is why Tyrannosaurus Rex has been trying to poach him. After he transformed the rhinoceros warrior with instruments, Tyrannosaurus Rex couldn't wait to expose the defense system of the Big Mac spacecraft, but the rhinoceros warrior said nothing, which made Tyrannosaurus Rex think that the decompression system was out of order. In fact, rhinoceros fighters have successfully hacked, their strength has increased, and their ambitions have also been revealed, trying to replace Tyrannosaurus Rex.