I'm sorry, but a "Spot the difference" game needs something for me to compare the original picture to. Making me surf the net for the picture, AND knowing which picture this is, is pretty far-fetched. Good luck getting above a 1 from anyone.
This game needs a Title Screen or Menu. It could also benefit from basic gameplay, graphics, a plot of some sort, or a reason to play. Hell, Pong had a better concept than this game.
One day several evil madmen sat down to discuss business. "How can we annoy GrateGuy more than than the world has yet to see?" asked one. "Silence!" yelled his comrade. "We shall build a game that is so simple in concept, yet we shall make him lose every time he plays it!" The rest of the group was stunned. Never had such a challenge been issued, and so they set off to make 99 Bricks...
Easiest way to defeat Spartans is two maxed out Flamer Joes and maxed out Fan. If you feel insecure about your wall, upgrade and get repairmen with the extra dough.
Don't listen to the panzies who need a Grenade Launcher, go get a cup of coffee while you wait to win.
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