I love this game and feel that the difficulty curve is reasonably appropriate for a game of its size. Challenging enough to take a bit of time to fully solve, and also encourage replay value. Very charming for what it is.

great idea. smashing through a block of buildings to create cover is really fun. I just wish there were a few more options for dealing with the police and military. at the moment feels a bit too punishing.

I like the concept and I think a city being destroyed by a giant monster is a good fit for a grid based game.  However, I think the game some times feels really hard, especially when multiple tanks show up or when the jet starts shooting missiles (although I think a game being punishing is very much in the spirit of a rogue like).  The only thing I really would change beside difficulty is having a quicker way to heal life when there is no enemies around, like press space to skip forward 10 turns.  Overall, fairly good for what I think is your first game. 

Important Note: There's an explosion sound in the game that is about 2x as loud as it should be, but I cannot fix this now. If you don't want a jump don't put the volume high.