After the Americans' franchise folded the following summer, Mayer signed with the Kansas City Comets for the 1985-86 season and became an MISL All-Star for the second time. Nicknamed "Kamikaze" for his reckless all-out style of play, he became a fan favorite throughout his time in Kansas City, spending his final four seasons as a Comet before retiring at the end of the 1988-89 season. Mayer played his last game on April 12, 1989, against the Wichita Wings, and he finished with a regular season won-lost record of 56-56 in Kansas City. In 2013, the Comets retired his jersey and it is now displayed hanging in the Silverstein Eye Centers Arena.