In this fight, the Gouris will always dash backwards if you get close, then jump to another row if you're in the same row as them. Joe's Y Fury "only" hits three rows, and this challenge takes place on four rows, so it's important to make sure the Gouris are only on three adjacent rows when you use your Furies. The trick to making sure you don't give the third row Gouris time to jump to the fourth row is to jump into the third row as they're dodging. Since dodges have recovery time, you can shoot them before they can jump away. This builds your Fury meter, and you can then jump into the second row. It doesn't matter if second row Gouris have the time to jump away - they'll end up in either the first or third row, and your Y Fury is going to hit row 1 through 3.