@Clyde I loved playing Tron in the Arcades, but of course it's virtually impossible to play without the right controls. I've got a few full-size arcades and 1 Arcade1UP and running out of room for much else. Using the GRS products to build a custom Tron controller solved those problems.
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first