I actually liked the game, the art style is nice, the music is weird but attractive, and the gameplay in overall (there are some flaws but) is cool :3
Some additions to the game would be nice though :
- CONTINUES
- Relative camera movement (Rotating with the player)
- a use button so i dont have to throw grenades at stupid gates, which block me :C
- Zombie variations and more guns (maybe a shop for guns etc ?)
its not that bad as you all describe it, the only thing that is critical for the gameplay is that mouse locking thingy :O
Also, i love it its so much like the original.