Subtitle: Cyborg Plant (サイボーグ植物 Saibōgu shokubutsu)
- Design: Yoshiaki Yoneya
- Mad Saturn would appear in Wutan's debut episode, as one of the monster ghosts in the graveyard, fighting Jumborg Ace.
- Mad Saturn reuses the Toho King Kong roar.
- Height: 52 m
- Weight: 20,000 t
- Origin: Earth
- Powers and Weapons
- Poisonous Pollen: Mad Saturn can emanate pollen from its left arm and petals on its head.
- Vines: Mad Saturn can use vines to whip foes.
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