Dropping some knowledge on how to play TMNT Wrath of the mutants on 4 arcade controllers with an Ipac with Rocketlauncher \ Hyperspin
Step 1: Configure game to use keyboard2xinoput in your AHK
Step 2: Add the game to steam and configure it to overide with steam inputs, edit the controls to have the dpad control the sticks
Step 3: Add the following ini info for the game to load:
Application=steam://rungameid/11106784937863282688
Application=H:\PC Games\Teenage Mutant Ninja Turtles Arcade Wrath Of The Mutants\TMNT.exe
AppWaitExe=TMNT.exe
ExitMethod=Send Alt+F4
(you can create a shortcut in steam and it will tell your unique id, most likely different as it's a custom game)
This will work with 4 players, only way I could get my controllers to be recognized, without Steam keyboard2xinput would do nothing...
I was able to get street fighter 5 and 6 working with this methode as well
Hope this helps someone
If a anyone is able to bypass steam let me know, seems some game need the steam inputs to work, otherwise keyboard2xinput doesn not work with the game on its own.