|Home world:||Earth (Jumborg Ace Universe)|
|First appearance:||Jumborg Ace episode 6: "Despair! Jumborg Ace sold!"|
Subtitle: First Cyborg (一つ目サイボーグ Hitotsu-me saibōgu?)
- Height: 51 m
- Weight: 49,000 t
- Origin: Tokyo suburbs
Mons Robo was created by AntiGone combining a monster and a robot. PAT was alerted of the kaiju when Mons Robo attacked a petrochemical complex twice. Later Jumborg Ace arrived and stopped the cyborg.
- Design: Yoshiaki Yoneya
Powers and Weapons
- Flames: From his mouth, Mons Robo can spit a deadly flame.
- Rotating Horn: Mons Robo can spin his horn and charge at the opponent.
- Horn Launch: Can launch his horn out of his head like a missile and another horn would come out.
- Burrowing: Mons Robo can burrow underground to hide from it's enemies.