Unidentified B1 battle droid 3 (Rugosa)

"Find master Yoda." "Uh, what does he look like?" He'll be the small shriveled green one. With the lightsaber!"

- Asajj Ventress speaking to this droid.

Around 21 BBY, a B1 battle droid along with a fellow battle droid accompanied Dark Acolyte Asajj Ventress to the planet of Rugosa to speak to Toydarian king Katuunko. After Jedi Master Yoda managed to escape the Separatist space ambush and landed on the planet, Ventress called in for more reinforcements and sent this droid along with the other one to join the army and take down the Jedi.