See 'cachaca'.
Um.. I don't really get this, either. You can get this in the Illinois invitation.

TIPS & OTHER

Quest Mode:
- A Special Invitation is an envelope icon in the map. There is a number next to it; this shows how many turns you have before it disappears! Each challenge in the Quest Mode is a turn.

- Special Invitations (trick): A cheap way to get a Special Invitation on an area you want (i.e for the achievement/song) is to exit out the map. After you complete a challenge, you'll be brought to the main map. If you press and then (thus, taking you to the char select screen and then back into the Quest Map), you have a random chance of an Invitation to show up. It is random where the Invitation lands on, so it may take a while for the Invitation to land on the place you want!

- To immediately end a challenge, hold Back or Start. You will clear it or fail it, depending on how you played. It doesn't automatically fail you.

- Icons: On the top left of the screen, the left icon (Speaker/disc circle thingy) represents how many Music Clips you have bought (explained later). The right icon (Movie clapper thing) shows how many Movie Clips you have.

- Music Clips: Every time you enter a new city, you have a random chance of a few things: A backup dancer or purchasing a movie/music clip. When you get a Music Clip, when you choose a song for your challenge, you'll notice a music note next to a song (ON THE LEFT). This shows that you have bought it. When you use it, you get a boosted amount of points (+2 per step). This is helpful in Fanbase or Dance Battle challenges. After the song is over, the next songs are random. These work in competitions/Special Invitations.

- Movie Clips: It's the same thing as a music clip, but you only get a boosted amount of points when the movie clip is playing. You'll know when it's playing when the FEVER icon during a song is lit up above your character. These clips won't play for music videos.

- Backup Dancers: These help in Dance Battles/Fanbase challenges and give you a bit of points. The more you have in an area, the better. These don't work in music videos. YOU CAN ONLY HAVE 8 MAXIMUM IN ONE AREA.

- Dance Battles: In a dance battle, you choose the first song. You will most likely want to choose a song in which you have a music clip on. CAREFUL! If there is an upside down music note on the right side of the song, then that's your rival's! If you choose that song, they'll get a boosted point bonus against you! Those weird block patterns on the dance bar at the top of a dance battle shows a music clip bonus. If it's orange/red, you get the bonus. If it's white/blue, they'll get the bonuses. Both you and your rival's bonuses can be turned on at the same time. They can also use FEVER, but no backup dancers.

A good song to have near the beginning (if you don't have TOO much music clips) is to use "Love in On Our Side" (not sure if it's this). On difficult, it has a max combo of 270 steps.

- Fanbase Challenges: These challenges require you to get as many points as possible. you must get a minimum of a certain number of points, and it resets every song. So it's useful to choose a song that will get you the most points! Every step you take, you will get a certain number of points.

PER STEP
Perfect: 4
Great: 3
Good: 2
Almost: 1?
Boo: 0
OK: +0
NG: 0
Music Clip: +2
Movie Clip (FEVER): +2
Backup Dancers: +1 per dancer (random) UP TO 8

Remember: It helps if you have less areas unlocked if you want the Invitation to appear where you want.

Challenge Mode:
- Stay calm. These challenges get increasingly difficult, especially after Marvelous.

- The challenges won't take you one try for most of them. If you fail, just keep trying at it and you're bound to get it (few exceptions..). For a lot of the challenges, you'll need to memorize/study the arrows to get it.

- As challenges increase, the stipulations become difficult as well. Poison arrows, Speed up, Reverse, Dark, Phantom, Sudden arrows.

- Use the controller. If you're able to do this on the mat, you truly are a master (or just plain lucky). and the D-Pad are used to the corresponding arrows.