Tried to play the game but couldn't really do anything except move around, there were no ennemies and I couldn't shoot so I don't know if I did something wrong... The visuals were very interesting and original though.
Edit : Nvm I figured it out, you have to press enter to enter some levels ! This should probably be written somewhere lol. Also I had to adjust the framerate of my screen because the enemies were moving wayyy too fast with a high framerate.