While he does not make an appearance in the game, the Warlord was first mentioned in Dragon Ball Z: The Legacy of Goku II. He was defeated by Robert, an old hermit who lives on his domain and attacked him because his henchmen were making too much noise in the forest. At the West City Mayor's request, Gohan travels through the Warlord's Domain in order to retrieve the key to the city that Robert steals because it was to be presented to Hercule, who supposedly defeated the Warlord while it is Robert who really defeated the Warlord.
The Warlord appears as a boss in Dragon Ball Z: Buu's Fury, on the airship Mega-Fortress XJ-5. He mentions that with this airship, he will succeed where Emperor Pilaf, the Red Ribbon Army, and so many others have failed. Goten or Trunks faces him to retrieve the Five-Star Dragon Ball. He will reappear later in the game (on an airship called Mega-Fortress XJ-6) for Goku, Vegeta, Gohan, Goten or Trunks to fight one last time. Defeating him, the Z Fighters will earn the Hercule Exhibit 16 (Collector's Plate). The airship is set to detonate after both encounters with Warlord.
Also in Buu's Fury, the Warlord's sword is Hercule Exhibit #23. The in-game description of this item is: "This sword was used by the Warlord of West City. His giant sword was no match for Hercule's Dynamite Kick!"
- The first time that Warlord is faced, he completely resembles the enemy known as Bio Mech. The second time, he completely resembles Ultra Bio Mech (and is identified as such by the scouter). But both times, his attacks are faster and stronger, and he does not become stunned when hit which puts him aside from the Bio Mech and Ultra Bio Mech.