From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Tullece's Spaceship appeared in Dragon Ball Z: The Tree of Might. It looked similar to an Attack Ball, but much larger. The Crusher Tullece Corps used it to travel to Planet Earth in order to plant the Tree of Might. Tullece's Spaceship was hidden in a cave and Tullece stayed in his spaceship while his men fought against the Z Warriors until Son Gohan arrived.
Tullece's Spaceship contained smaller probes that walked on legs like Spiders and were used to examine a planet before Tullece' Spaceship landed.