As you exit the Monastery, go down the stairs until you come to a square court yard with a group of monks practicing their forms. Don’t go down the stairs to your saucer. Instead, make a quick right. You should see a small rock formation. One of them is rounded and can be PK-ed. This is your bowling ball. Now throw it at the group of monks and hit 3 of them for this DAHM.
Note : It’s easier to hit them if you throw the bowling ball from the air instead of from ground level because the ball often bounces away when it hits one guy. If you throw it downwards, it’s harder for it to bounce away.