Might as well chip in, since it has been 2 month I use Origin to play Alice : Madness Returns, no problem so far.

ID : YungJie

Yup, only EA games.

However some EA game cannot be keyed in. My Battlefield 2 and Bulletstorm for example, I tried to key in but it said not valid.

digital from steam.

If your BC2 is steam, look for CD key, then open origin and redeem the serial code.

And just key in the product key. Click the gear symbol and look for "Redeem Product Key" and key in.

My Bulletstorm also cannot be added too.

Yeah it is offline now, and I thought I was alone in this.

Even the EA Games official site also cannot log in.

Here's the snippet I asked in KGM

"Battlefield.Play4Free.com is offline due to connectivity issues at some data centers. We are working to correct this problem asap."

I have changed my username to Yung2Jie.