You do not need to move your whole body. Just move the hand that has the Wiimote.
How to get 'Greats'
Play a song and follow the hollowgrams. Keep playing the song and get used to it. You will get a lot of 'Greats'.
Song list
The following songs are available in the game.
1. Acceptable in the 80's by Calvin Harris.
2. A Little Less Conversation by Elvis Presley.
3. Bebe by Divine Brown.
4. Can't Get You Out of My Head by Kylie Minogue.
5. Cotton Eye Joe by Rednex.
6. Hot n' Cold by Katy Perry.
7. Dare by Gorillaz.
8. Eye of the Tiger by Survivor (Rocky).
9. Fame by In the style of Irene Cara (cover).
10. Funplex CSS by The B 52's.
11. Girls and Boys by Blur.
12. Girls Just Want to Have Fun by Cindi Lauper.
13. Groove is in the Heart by Dee-Lite.
14. Heart of Glass by Blondie.
15. I Get Around by The Beach Boys.
16. I Like to Move it by Reel To Real.
17. Jerk it Out by Caesars.
18. Jin Go Lo Ba by Fat Boy Slim.
19. Kids in America by Kim Wilde.
20. Le Freak by Chic.
21. Louie Louie by Iggy Pop.
22. Lump by The Presidents Of The USA.
23. Mashed Potato Time by Dee Dee Sharp.
24. Pump up the Jam by Technotronic.
25. Ring My Bell by Anita Ward.
26. Step by Step by New Kids On The Block.
27. Surfin' Bird by The Trashmen.
28. That's the Way (I Like it) by Kc & The Sunshine Band.
29. U Can't Touch This by MC Hammer.
30. Wannabe by The Spice Girls.
31. Who Let the Dogs Out? by Baha Men.
32. Womanizer by In the style of Britney Spears (cover).