You should make a game just like this, but the player is the gaurd, and they can only see in front of them, and the objective is to not let the assasin kill the boss.
Argh. I make it to the first level with the futuristic robots attacking, and under the hail of animation bombs, the game lags, and I can't reload or fire my weapon fast enough to do anything. A tip for players - use the machine gun...it helps alot, cause you can just hold down the click button. Tip for developer - work on fixing lag, have an upgrade reload time option. Other than that, great game, please make a second one.
To hit a bird with a rock or throwing item, point your mouse towards the top of the game screen to throw it higher. It took me about 5 seconds to figure this out. This game 4/5.