Interesting and fun~ But Clicking to drag, and move the Anti-virus. Then moving the mouse to the fire button, is near impossible.
It doesn't play too well, and if I could hit the Spacebar to fire, or E. Anything. It would make the combat much smoother.
As it is now, With such a hail of bullets. In the brief time it takes to let go of the Cannon, Reposition the mouse to the 'Fire' button, Then hope to hell that it hits the target. You've already been hit a million times.
So yeah. If we could fire with Space, or something. That'd just work so much nicer~♥ =^o^=