Neo McDonald (ネオ・マクドナルド, Neo Makudorunarudo) and Geo Kentucky (ジオ・ケンタッキー, Jio Kentakkī) are the protagonists of SNK's arcade quiz game Quiz Dai Sousa-sen and its sequel Quiz Meitantei Neo & Geo: Quiz Dai Sousa-sen Part 2. They are voiced by Hiroyuki Arita in The King of Fighters 2000.
Neo and Geo are two talented private investigators who help people as they encounter them. They usually offer their services for free, which gets them in trouble for their rent. Although they have several organizations requesting their skills, both men choose to remain independent in the streets. Their adventures take them around the world, through time, and even outer space.
Neo is the more hot-headed of the two, wanting to get into the action rather than play along with the opponent's questions. He's also popular with the ladies, though he insists that he's not interested since he's a man dedicated to his job. Geo is the calmer of the duo, always speaking politely and avoiding fights unless he has the advantage. They are always seen working together to defeat their enemies with their fists and knowledge.
The duo's outfits are colored to match their personalities, with Neo wearing a white suit and a red shirt; and Geo, a blue suit and white shirt. Geo in was modeled after SNK staff member Toyohisa Tanabe.
Both men are usually quizzed by their opponents. If they answer correctly, they'll use punches or other elements of the environment to help themselves out.
- Quiz Dai Sousa-sen: The Last Count Down
- Quiz Meitantei Neo & Geo: Quiz Dai Sousa-sen Part 2
- Quiz King of Fighters
- The King of Fighters 2000 - As Maniac Strikers for Ramon
- The Rhythm of Fighters - Support Character (Neo)