This needs to be done in exhibition, tournament or career and NOT in a party match as the description states otherwise it will not unlock. You need to leave yourself a score of 170 during a 301, 501 or 701 match and as stated in the descripion you need to score two treble 20's followed by the bullseye to finish the shot. It can be done at anytime during the match.
The easiest way I found to do this is by aiming at the top of the board, as far as it'll go and gently flick the right stick to give it little power, this should hit the two treble 20's, then for the bullseye move your cursor to the top wire of the treble 20 and again flick your right stick for little power, this should hit the bullseye. As soon as you hit it the achievement will unlock.