I Don't Really Know. Sorry!!
That shouldn't happen, Buy another one. :/
i know if you open a zhu-zhu up and take the top part you can get a pair of scissors and plug the hair out
fix it.
Send it to a Nintendo company and they will fix it for free.
she should so it doesnt get worse
The first thing to check is the battery - new ones might fix it. Otherwise, you may have stripped the gears. It is natural for kids to stop the wheels to learn about their environment, but this breaks them by striping the tiny white plastic gears inside. The manufacturer should have seen this coming. However, if they didn't break uner stress, they would pull harder when caught on something. Getting hair stuck in it would mean a permenant bald spot. A catch 22 trade off.
if it doesnt turn on once taking the battery out and putting it back it, take it to a mobile/cell shop and get them to fix it.
A spark plug that doesnt fire or a coil that doesnt fire Try a new set of plugs and wires
it doesn't work!!
youll need to first wire up the socket to battery.
if replacing the battery doesnt fix it.
Need to know what the problem is.