This is from PS2 demo disc ops2m demo 2. You can get this from the second issue of the PS2 Official Australian Magazine.
This playable demo is Dynasty Warriors 2
Notes from Uploader:
This is fairly challenging, as the main enemies block quite a bit and take a good few hits and just charging ahead makes for a hard challenge.
I know that you can beat the Dynasty Warriors 3 demo by heading for that one guy and doing some exploiting aswell. But unless there's an exploit to get past these walls, there's NO way to actually beat this one in the time limit they give you.