Ultra Denryu Iraira Bou was released in August 1997 in Japan. It was the first that required a trackball on the Neo-Geo MVS. It was never released on the Neo-Geo AES home console.

The title translates from Japanese as 'Uchan Nanchan's Flame of the Challenger - Ultra Irritating Electric Stick'. Uchan Nanchan is a Japanese comedy team consisting of Uchimura Teruyoshi and Nanbara Kiyotaka.

Based on a popular Japanese game show, called 'Dengeki Iraira Bou' literaly 'Electric Irritating Stick'.

This game is known outside Japan as 'The Irritating Maze'.

Developed by Saurus.

Producer: N. Tanaka
Directer: Yasushi Okahara
Designers: Miwako Kojima, C. Yoda, Y. Hara, N. Nakagawa, S. Ishiguro
Programmers: Y. Sakamoto, M. Yuuki, A. 00I
Sound: Masahiko Hataya, H. Takei, H. Togashi, K. Matsueda