its really not that difficult
makes sure you have the latest Ultimate-Switch-Hack-Script-master
on your pc desktop just make a folder named rom no () or ... or anything else just a simple folder name
place the Guardian_Force_Saturn_Tribute nsp in the rom folder make sure its the standalone game not the 3 in 1 as the 3 in 1 does not work with the current Ultimate-Switch-Hack-Script-master
place your prod.keys and title.keys in the Ultimate-Switch-Hack-Script-master folder just for convenience
place your saturn game in the rom folder bin and cue again no () or ... or anything else just a simple name like Sega Rally Championship.bin rename your Sega Rally Championship.cue to GuardianForce.cue
now run the script make sure settings are correct font lucide console blah blah
press continue
select n if you have the latest version
then 2
then 6
then 16
then n
this gets you to the injector
now press 2
press continue and select Guardian_Force_Saturn_Tribute nsp
press continue and select rom folder or whatever you named it
press continue and select prod.keys in the Ultimate-Switch-Hack-Script-master
press continue and select title.keys in the Ultimate-Switch-Hack-Script-master
just keep pressing n at this point until you get to ID: the just press continue
name your nsp keep it simple like Sega Rally 95 and press continue
name author again keep it simple like Sega and press continue
name version something like v1 and press continue
press continue now choose folder best to just save nsp in the rom folder
select y
let it build nsp just ignore the key errors i did and it still works just fine
once you have mastered the basic injection process you can start playing with icon/tex/wp and so on
hope this helps
massive thanks to
@shadow256 for the script hope this saves you a load of question
and to the op
@lisreal2401