(sample of his original voice (Ashe) both English and Japanese https://youtu.be/VHpSi1h-2DA?t=102 from that point to 3:11 at the end of his Japanese voice. If you want, you can make him sound very goofy too!)

Buckfire is a highly aggressive Pseudoroid who values order above all else. However, he does not seem to be very eloquent, as his sentences tend to lack prepositions and do not follow proper grammar forms. He apparently looks down on females (although not nearly to the same extent as Rospark the Floroid), due to chiding Model A's "mistake" if the player plays as Ashe.

Buckfire leads the Maverick attack on the Train of the Hunter's Guild as it transports Model A to Legion HQ. When confronted by the new Mega Man Model A, he claims that the Biometal broke rules and made a big mistake by lending its power to a "defective" (if the player is Grey) or a "girl" (if the player is Ashe). He also corrects Grey/Ashe's accusations that he was a maverick and makes clear that he is in fact a Pseudoroid. He then announces that he will pummel the Mega Man to the ground and do to them what Pandora and Prometheus would not do, but he is defeated and his data is copied by Model A's A-Trans. During his death throes, he also denounced Model A as a traitor before lamenting their future world. He is revived by Master Albert for the final battle in Ouroboros, but he is defeated again. He dies claiming that the Mega Man broke the law and should move on to face the "King's" punishment.