In FNF vs X-Terion Sonic.exe 3.0 mod, you will see opponents depicted in an unusual style, but this does not change their goals in Friday Night Funkin. These are all the same characters that are fighting for the title of the best singer, but here they are waiting for new music and appearance.
As usual, you need to control the Boyfriend, and your opponent Sonic.exe will attack with his vocal abilities to the maximum. Our protagonist is not the first time faced with such strong enemies and he always has an ace up his sleeve in case of unforeseen circumstances. You just need to help BF a little so that he does not get confused in musical notes.