Osaka Pro Touhoku Return Favor Series 1999 (Night 6)

 took place in Tsuruoka, Yamagata, Japan. The event took place on June 30, 1999.

Results

 * Numbers in parentheses indicate the length of the match.
 * (c) refers to the champion(s) heading into the match.
 * Singles Match: Kaiju Super Zagaraus defeats Super Demekin (5:02)
 * Singles Match: Chikako Shiratori defeats Yuki Li (7:41)
 * Singles Match: Masaru Seno vs. Naohiro Hoshikawa - Time Limit Draw (20:00)
 * Tag Team Match: Kuishinbo Kamen & Policeman defeat Masato Yakushiji & Super Demekin
 * Six Man Tag Team Match: El Oriental, Super Delfin & Tsubasa defeat Black Buffalo, Dick Togo & Virus