Start up a 1 player game of Original Twister. Choose a quick game cause this achievement might take a few tries. I did this on the first song in the game. Go to Pop Music and "Dreamer." Make sure you hit every button during the dance (even freestyle) and this achievement is yours! A perfect score for a quick game is 45,000 and a full game it's 90,000. The thing that will most likely keep screwing you over is the freestyle. For these, you need to do this combo: ABXY ABXY. Do not just press A as this won't count as a perfect. It will take some practice but you'll know you did it when the score is correct. Best of luck with this pesky achievement. Hope this solution helps!