I am with DamienD on this one, the ADF corresponds to the files from the archive, nothing has been tampered with.
Also, S is common between the two types of keyboards, so supposedly S should do something when I fight an opponent, alas it doesn't.
Please consider, I am not asking for meynaf to fix the controls, the port probably took him a lot of time, it's more something to discuss among fans of the game who may have encountered a similar issue with controls when playing from WinUAE (some dude made a comment about how controls were bad "steering... complete crap" his words not mine on
LemonAmiga). If meynaf wishes to look into it, fine, otherwise, no biggie.
Maybe a routine detects AZERTY keyboard and inadvertently prevents middle kick punch from working.