For some people the Neo Geo fighting games are easy achievements; for others with less skill they are hard and not an easy 100%. I am one of the latter people.
For this game you need wins to unlock achievements. I found choosing Mina Majikina as my character (she is the character with the bow near the bottom row of characters) as one of the easier ways to rack up wins. You can shoot from distance using her triple arrow, which I had mapped to my RB button but your may have mapped to another button. If someone comes in close Mina will slam her opponent with her bow using the same button used to shoot the bow which helps against brawlers. Another useful attack is to jump in the air and push down and shoot your bow - on low level characters you can do some damage. I mainly used the bow attack from distance to win - I obtained several perfects by timing the attacks correctly.
I used various other characters and did not unlock this achievement but with Mina I got it on my first try.
Good luck achievement hunting.