Yeah, level 4 is hilarious because there is swarms of the small ships flying everywhere from every direction and a cannon guy firing round after round of super fast shots everywhere every 5 seconds. When you die on that level and just look at all the stuff on the screen at that moment it's so hilarious because it honestly doesn't look like a human being could possible comprehend what's going on enough to actually make it through. With enough practice it becomes increasingly less difficult though. I can get to level 5 usually without using a continue on Medium.