Very well done! I liked the core mechanic of drawing the way through the level. I found it very difficult to use all of the controls. Shooting and blocking added extra complexity that I believe wasn't really needed. The core mechanic was the pencil. You could just make the pencil longer and destroy enemies and their projectiles if they come in contact with the pencil, much like BTP's game. Awesome game for your first game. You should continue to develop it!