Brook from BrookAccessory.com has just released an updated firmware for their PS3/PS4 to Mega Drive/PC Engine Super Converter Adding the much needed 6 button controller support for the PCE and SuperGrafx.
A demo video of the new firmware is below and it’s available from their download section at: https://www.brookaccessory.com/download/
BROOK PS3/PS4 to PS2 GAME CONTROLLER SUPER CONVERTER
(548)Brook Super Converter series makes old controllers compatible with new consoles. This not only saves you money but also means that you can use the controllers you have grown accustomed to. Compatible with gamepads and joysticks. Auto-register control... read more
(as of July 26, 2021 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Old Skool TurboGrafx 16 & PC ENGINE CONTROLLER
(38)Full turbo functionality Includes PC Engine adapter Compatible with Turbo Grafx 16 Compatible with PC Engine Compatible with the Multitap
(as of July 26, 2021 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)