Why do you get a bonus for using more troops than your opponent? shouldn't you be rewarded for deploying less troops? that's my understanding of war anyhow....
It has the same problem all these games have... it's the same thing over and over... wait til you get missiles, and shoot a monster in a weak point... it gets old very fast. You should at least throw some different upgrades around and maybe different enemies as opposed to different colored enemies.
I'm sorry to say I put 14 levels into this game just to see if it ever got challenging. The multipliers were a nice component to gameplay, but you shold have made them as such where you had to use them to reach your goal scores.
Having actually read other comments, i'm not going to harass your jump anymore. I'd like to note that in the first level, walking off to the screen to the right when on top takes you to the bottom level, walking off on the bottom level stops the game. Also, moreover than the jump looking bad, I find it occasionally won't work while running (making it hard to clear those spikes.) Sidenote to the spikes: you may want to add lives or save points rather than sending people back to the menu.