After several unsuccessful attempts, it finally worked on my Japanese Rolly! ^_^ It's sooooooooo AWESOME!!! This is what I did:
1. Open up NotePad. If you don't know how to access notepad, go to Start->All Programs->Accessories->Notepad.
2. On the first line, type in REPEAT=0
On the second line, type in in DEMO=1
3. Save as demo.ini
4. Plug in your Rolly
5. Go to Start->Computer->SEP and transfer that demo.ini file to that folder. Just click the file and drag it to that SEP folder. You should also be able to see a file named Rolly.ini and a folder named OMGAUDIO inside the SEP/ Rolly main folder.
Note: SEP is the folder name of the Rolly main folder. Well...that's how it shows on mine. I'm not sure if it will be named the same on your computer but you should be able to figure it out by clicking each folder and seeing what files are inside.
Note: The Computer folder shows all the portable devices that are connected on to your computer, it also shows the Hard Disk Drives of your computer, for example: HP (C:). My computer is an HP.
6. After you've transferred the file, close the Rolly main folder and unplug your Rolly. Your Rolly should now be able to dance continuously.
The only problem I found after inserting the demo.ini file, is that you're not able to roll the device forward or backwards to skip or go back another song 0r rase/lower the volume, because the Rolly just keeps on moving and rolling everytime a song is playing. It just keeps on moving nonstop! I tried clicking the button twice to see if the dancing will stop, but it doesn't seem to. I can't roll the device forward or backwards to skip or go back a song while the wheels are continuously moving. Can anyone help me with this problem?