Fun game with a really great theme. The way to attack enemies seems at odds with the way to progress, I was constantly zooming backwards and forwards around the screen and had trouble dodging the firewalls. Almost made it to the end, got to around 90% and then got stuck off the left edge of the screen, couldn't move right and died when an enemy spawned from the left.
I had another few goes but never managed to win although I had fun zooming along the bottom of the screen once I figured out the firewall hitbox doesn't go all the way to the edge. I thought I had outsmarted the game but the enemy spawning got me in the end. Good work!