I had the same thing happend to my tama, it kept resetting itself and after a little while of downloading the batteries ran out all together. It's most probably battery related, so invest in buying a new one :)
I bought a Japanese Chibi off of ebay a little while ago, and I was very confused about how to get the backing off as well. What I usually do is get a pen and push the small button (not the reset one xD) down as far in as it will go, then I slide the pen off still with it still pushing the...
i bought a green one after my friend got one from a show... deffinatley a rip off -_- . first you choose a character and wait for the "sweating egg" or "shaking house" to appear and a very faint happy birthday tune will sound then once hatched a cell phone icon will light up and you must tend...