for everyone who is asking to make it harder, i don't think that's possible without changing the concept of the game. that's why they have the timed modes
take a fun concept and make a game riddled with annoying flaws. the fact that the enemy continuously tries to lock itself with your ship is terrible alone, but then it's near impossible to effectively maneuver
obviously the concept doesn't make sense in the real world, but neither do a lot of games. The real problem is that the game is too unresponsive. And when you get to later levels you need every click to work
turned adblock off, still doesn't work. And flash games should work regardless. unless youre trying to make a game that only a few people can actually play. 1/5 until this gets fixed