Yes I know. At the end I hadn't enough time to completely finish the game and the web version has problems such as when you rotate there is a limit left and right because the mouse arrives at the borders of the screen. I had no time to debug it well and make a real goal in the game. Here the player only has to survive but there should have been be a score or things to pick up.
Anyway, thanks for taking the time to try it and to write this comment.