ZOIDS: Chaotic Century(1999)

Kijuushin Seiki ZOIDS

Van is the son of the greatest Zoid pilot in town, but he isn't living up to his father's reputation. He's lucky if he can even get a Zoid to move, but while being chased by a rampaging scorpion-like Zoid, Van finds himself in some old ruins.

(Source: VIZ Media)