Furby has stopped working only after 2days

You need to reset your device.
You'll find out here how to do this.

probably first turn your furby upside down. by the battery holder you will probably find it.

Furby 2012 Manual Copy
This manual may help you.

I pressed the Refresh button for a few seconds. That fixed it for me after ours seemed to have stopped working.

http://www.furby.com/assets/pdf/Furby_Refresh_Button_Location.pdf

If it is still under the warranty, send it to the manufacturer to replace and/or fix.

http://www.mimitchi.com/html/furbman.htm

furby manual online

Have you tried restarting? It's different from resetting. You have to keep his tongue down (as if you're feeding him) while resetting. This worked for me when Furby didn't move, only made sound. Good luck! (If you still have it, it's May already)

I bought this model several months ago and it was working great up until Christmas time.  For some reason it just stopped working.  I couldn't get it to turn on OR sometimes it would turn on after several attempts.  I kept changing the batteries and sometimes that would work, but it was more or less random successes.  I found this link on FixYa : http://wwwuk.kodak.com/global/en/service/batteries/batteryDigCamChart.jhtml?camera=C813
I was using generic batteries (Philips) which I bought in bulk from a discount tech store and these batteries were working in the camera since I bought it.  The batteries were new; just generic.  By coincidence I ended up buying KODAK branded alkaline batteries from the same store.  I replaced the older generic ones with the KODAK batteries and the camera came back to life!  I'll leave it off for a day and see if it turns on tomorrow.

I also have a hp plasma pl4260n ... we bought a harmony 550 remote and you program it on your computer!! It is the best thing ever controls everything...good news is they are on sale at best buy online probably in store also right now they are 49.99 normally this one is 99.99 so it is a great deal, i also picked one up for the inlaws christmas present!!
This should solve your problem and get you a great remote..it also has a 1 year manuf. warr. on it so if it fails to work during that time you can get it replaced in store at best buy!!!
good luck!!!