Zonplas (ゾンプラス) is a boss enemy from Ys VI: The Ark of Napishtim, encountered at the Altar of Brillante at the peak of Grana-Vallis Mountain.
After Adol collects one of the fragments of the Mirror of Zeme at the Altar, the homunculus Jue appears. She summons Zonplas to fight Adol for her own entertainment. Zonplas hits the platform they are standing on with it's claw, which causes it to break off and fall down the mountain. Adol and Zonplas fight on the falling platform, and Adol manages to defeat Zonplas just as they hit the ground. After the fight, Adol finds the red emelas sword Brillante in the rubble, which Jue had fed to Zonplas before.