Awesome
The first level was awesome. Then I started the second. Got near the first terminal, threw down a turret, and started shooting. Then the screen froze. The terminal showed it was still being hacked, and sound effects continued as if the game were still playing, but I died after a short while of not knowing what the fuck was happening. I clicked "retry" thinking maybe it wouldn't freeze again, only to see myself exactly froze the way it was right when the level started. Thinking ahead, I closed the game via the "hide game" x button, and clicked play again. Now currently there is a screen up that says "The Engineer" and has his picture. No buttons, no sound, nothing, just the main menu picture.
Fix your bugs.