Enjoyed the demo, blasting robots to pieces is great fun. I had to laugh when i shot off a robot's right arm, making him drop his gun and as he picked it up with his left arm, i shot that one off as well.
A nice touch i noticed is that you can avoid fighting the mid-level boss with the mini-gun in stage 2. If you shoot the hovering device he's holding on to, he will fall down before reaching the floor you're on. The same goes for the rest of the reinforcements that are flying in. A minor downside of this approach is that his mini-gun falls down with him and you don't get to use it.
Could someone that is fluent in Japanese have a look at the options and tell me what the "game" settings do? Perhaps there is a shoulder switch toggle like in Uncharted 3.
Also, what would i have to say for the AI to come and revive me when i'm downed, so i don't have to waste a med pack? I managed to do it once by yelling stuff like "medic", "help", "revive" and some other stuff, but i don't know what actually made the AI come over and help me. I might have said something that sounded similar to the proper Japanese command, or the game actually recognized the English command, but I tried to repeat it a few times since and had no success.