The Zanspy (ザンスパイ Zansupai) is an antlion-like Reaverbot that only appears in the Nakkai Ruins in The Misadventures of Tron Bonne. There are also two large versions of the Zanspy in the middle of a sandpit in the ruins. They don't attack nor move out of the sand, but they release small versions of itself to attack intruders. The children travel in groups and try to walk into the Gustaff to damage it by self-exploding. The lower half of the large Zanspy is a mystery.