To put this bluntly, it sucks.
I'll be frank. While the graphics are pretty dang good, the game play and storyline suck. You start out with a transmission between two people. okay so far. you cut directly to a man outside of an elevator who has somehow managed to kill a guard (Whoa whoa whoa. We're missing something here. HOW exactly did this man escape? How did he get the gun?) you go to the next screen and kill a guard and some Zombies (Zombies?!) you go around for a while and you see other people who are trapped in some rather strange ways. Namely chained to the wall (???) dungeon style and tied up. (Wait a minute, why the heck are they called 'test subjects' and trapped in these ways, and why the heck are they so close together?) You go up to these people and you want to help them. But no. The guy you're playing as laughs in their face and leaves them to their fate. (I'm making that part up, you just walk by them. WITHOUT ANY WAY TO HELP THEM!) I stopped playing after dying several times (Guards- 8 hits. Zombies- 8 hits. WTF?!) to the Zappers. (4 hits) and each time I was one split second off from killing them. (Now just one dang minute. I understand the Guards being killed in 8 shots. But why do the Zombies (?!?) have 8 shots as well? And the Zappers are too hard to hit to really wipe them out with four shots (If you're lucky) or two with the silver bullets (Seriously?). I was extremely frustrated with the way you DIDN'T INCLUDE A JUMP BUTTON. Of all the things you had to leave out. A JUMP BUTTON! Now I won't pretend and say 'it has potential'. It doesn't. It needs a redo. I suggest you add some story to this, take your time and don't rush it. You cannot make a good game with great graphics without the effort, unless somehow you were to make it by accident. (Don't count on that happening.) I encourage you to try again and doo better. You have potential, not the game.