There's been some spare downloadable codes online from other sites for a demo key to God of War III, It's basically the same demo as the one that we've all seen at this years E3 09 and Tokyo Gameshow 09. I did not know there were Demo keys for God of War 3 but here's my impression of the Demo and what I thought of it.

Kratos: You won't like me, when I'm angry. (Starts turning into the Hulk)
I was really impressed with the Graphics that have been poured into the Playstation 3 for God of War 3, so much blood and gore everywhere. I defindently stabs the heart of other next-gen games such as Halo 3 and Mario Galaxy I'm not saying there bad games or anything it's just graphics look wow.

Fans of the series will know that gameplay is still the same as it was for God of War 1 and 2 for the PS2. You can grab on to flying enemies and stab them to make the fly faster to get across to the other side. You can also use Cestus which were the Iron Fist gloves where you can do some heavey damge to stronger enemies.

The best part of the demo was ripping enemies and ripping the head of the Sun Goddest Helios. But I've also enjoyed seeing Kratos ripping the cyclops eye out.

Brew HA HAH HA, can't wait to pick up God of War 3 next year for 2010 along with Kingdom Hearts Birth By Sleep and Bayonetta (But hopefully SEGA might fixes the problems for the PS3 version). But I must say I was really impressed with the Demo of God Of War III.
Comments
jahan25: Yep
bigd575: I'm looking foward to the full version, but it was fun playing the E3 demo.
Colmillios: I'm guessing the God of War games aren't your cup of tea.
BigBoss712: Good luck on getting the demo when you pre-order it.
DrCLos: Me niether, but I can't wait to play the full version. HEAVEN-Z-A-LIE: It's around 2744 MB I think.
First one was a great game though, incredibly superb. Too bad they got greedy.
nirvanaphoenix