You don't.
The Hamsterball code is: moshlingzoo1
When you sign in type in moshingzoo1 and you have the hamsterball!!
Hamsterball - 2010 VG was released on: USA: 25 March 2010
RDRF
pet shop
Hamsterball
Yes.
go on something different
No Hamsterball Unleashed is an online PS3 game
yes there is. at the dizzy race,up race and neon race
It depends on what you have, and what you have it registered under. Every serial number is different.
You can download hamsterball on this website!http://www.games2download.com/free-arcade-games/hamsterball.htm