Emergency Halt

My entry for the Trijam - Theme: "Don't Shoot!"

Story: "Oh dang, I accidentally armed the super cannon. I've got to shut it down before it blows away the whole galaxy. Disable the safety, and hit the disengage button before time runs out! Controls:

Up/W/(A on gamepad) - jump
Down/S/(X on gamepad) - turbo dive
left/right/A/D/(dpad on gamepad) - move