It should accept just the first names now, on a few them. You have to know the last names for some of them, they're never called just by their first name.
This is honestly way too specific to be a good quiz. You shouldn't have to put 'the' in front of them or 'and' for Pain King & Steel Toe/Senor Senior Senior & Senor Senior Junior.
You spelled Junior's name wrong, as well as Sensei's.
You spelled Junior's name wrong, as well as Sensei's.