Offline Storymode Help

[Poo Fly]

didnt seem to have this problem, but its happened to me in like everyother game i have played, just keep trying at it, find a way which hurts them a lot more than you, and master it :p you'll get them at somepoint, as for afterwards, do the same thing, but look for places you could get the enemies and stuff stuck. and shoot them :3
there'll always be a way past it, restarting over is a nono