The weirdest thing about the difficult message is that the final line implies that you can stay on the same difficulty, just after a hard reset. Why do we have to hard reset at that point? Can't there just be an option to just dismiss the message?
A fun concept dragged down by an unreliable physics engine. And regardless of what the developer's comments say, the explosions either don't cause damage, or don't cause noticeable amounts of damage.
Yes, we consider it complete in its current form. Working on a bigger project at the moment =).