for this part:
; SuaveDude, previous=d, next=w, select=/s+a
i don't think there is a need to assign the select=/s+a parameter because this was like assigning the character to select only by pressing start then followed by a button to select the character and not selecting the character on any button press such as one of the example that I found in os farram's Ikemen Go Fighting Collection in the select.def file:
slot = {
Iori-KOF98/_Ikemen_GO.def, stages/kof-XIII-KOF`95-Remix_Stage.def, includestage=0, order=7, ordersurvival=7, previous=d, next=w ;yes-stage;yes-music ;Author:"ikaruga"
Yiori/_Ikemen_GO.DEF, stages/kof-XIII-KOF`95-Remix_Stage.def, includestage=0, order=0, ordersurvival=0, previous=d, next=w, select=/s+a ;yes-stage;yes-music ;Author:"[Yagami+ihoo1836]"
Yiori/_Ikemen_GO.DEF, stages/kof-XIII-KOF`95-Remix_Stage.def, includestage=0, order=0, ordersurvival=0, previous=d, next=w, select=/s+b ;yes-stage;yes-music ;Author:"[Yagami+ihoo1836]"
Yiori/_Ikemen_GO.DEF, stages/kof-XIII-KOF`95-Remix_Stage.def, includestage=0, order=0, ordersurvival=0, previous=d, next=w, select=/s+c ;yes-stage;yes-music ;Author:"[Yagami+ihoo1836]"
Yiori/_Ikemen_GO.DEF, stages/kof-XIII-KOF`95-Remix_Stage.def, includestage=0, order=0, ordersurvival=0, previous=d, next=w, select=/s+x ;yes-stage;yes-music ;Author:"[Yagami+ihoo1836]"
Yiori/_Ikemen_GO.DEF, stages/kof-XIII-KOF`95-Remix_Stage.def, includestage=0, order=0, ordersurvival=0, previous=d, next=w, select=/s+y ;yes-stage;yes-music ;Author:"[Yagami+ihoo1836]"
Orochi_Iori/_Ikemen_GO.def, stages/ken_sfa3.def, includestage=0, order=0, ordersurvival=0, previous=d, next=w, select=/s+z ;yes-stage;yes-music ;Author:"Ahuron"
}
like if I want to select orochi_iori, i have to go to iori-kof98, press the d or w button to reach him and if his big portrait shows up, I have to only press start and z button to select him and not with other button press, here is another that I saw in another ikemen go game that there is no need to have this select=/s+a parameter where I believe I can choose my character after pressing d or w button with any button from a, b, c, x, y or z or even holding start by pressing a, b, c, x, y, z to select the character which I think it works:
slot = {
96-Ralf, stages/ikari96.def, music=sound/Rumbling on the City.mp3, order=2, previous=s, next=s
ralf94, stages/KOF94-BrazilStage.def, music=sound/JUNGLE BOUNCER.mp3, order=4, single=1, previous=s, next=s
}
correct me if I am wrong, I don't have the time to test
but that's how I felt when I was reading some of the select.def of those ikemen go games