It's a cool concept and the controlls feel nice aswell. I also tought, that the game is nicely balanced, it is challenging but not unfair. I would have liked it if the enemies spawned randomly tough, but i guess the balancing would have been infinitivley harder. I also had problems with figuring out where exactly my Firewall is when it was on top because it was behind the core and you could only see the fireparticles which don't indicate the exact location. But other then these minor complaints i really liked the game.