this is a pretty cool game with lots of potential, however, the enemies are a little to strong for the first level but a cool art style and pretty neat non-linear gameplay. I am a big fan of non-linear shooters, so keep coming out with more levels!
however I do have a few small complaints, the first room was a little confusing on what to shoot, this could be solved by the shootable object to stand out a little more, this could be achieved by lighting or a glowing animation. the voice at the beginning, in English at least, was hard to understand.
otherwise a pretty solid game! keep up the good work!