Almost a classic. As it is, it's a wee bit flawed.
When I picked up the first stickman and threw him about, trying to see how you killed them, that in itself was great fun.
It was fun for a while, and then came a wee bit (before the giants came along) when I was starting to tire of just endlessly flicking the mouse upwards. (Not physically. Just that it was starting to get a wee bit tiring.)
By the time the giants arrived, I had made some wizards, so I was OK. I enjoyed the new element and was hoping for another enemy addition.
However, as has already been said, the suicide bombers just make the game stupidly easy. Once they came along, it was really easy for me to go through the stages and get loads of points with which I could support loads of archers, meaning that by level 25 I literally didn't have to do anything in order to progress, other than click on 'OK' after levels.
It's a smashing game, but it does still have some problems and could be made better.
Firstly is the problem of the fact that the later levels firstly allow you to get enough points to get a stupid amount of archers and that they then take care of all the enemies for you.
Maybe you shouldn't get the points for the enemies the exploding barrels kill? That could make it a bit fairer, a bit trickier.
Maybe you should have some more stick-men movement patterns? You could have some maybe flying across the screen, or some jumping along with pogo sticks? These's obviously be harder to catch, and maybe the archers wouldn't be able to take care of the flying men?
Maybe you should make it so that there's a maximum number of archers you can have? If you could only have 100 archers say, then that'd go some way to helping that problem.
A fair few people - including myself - seem to have been a bit disappointed with the way the game just basically carries on and dies a slow death rather than anything else being introduced or any sort of ending.
I understand that it's the kind of game that some folk would want to play forever, but you could always have it so that there's an ending, but then you get the option of carrying on. Maybe in the sequel, it could be an objective to defend the castle for 100 days or something, and after you'd done that, you'd get an ending but also the option to continue forever if you were that way inclined.
Also, I feel that not being able to see the help whilst playing the game is a bit of a flaw. Also, you should have mentioned the whole principle of upkeep in the help file of the game.
Lastly, when I had 500 archers, the game was stupidly slow, despite my having a reasonably decent PC. (640 mb ram, 800mhz processor)
All in all, it's a fun idea to toss about the stick folk, and it's all really nicely 'programmed', but it does seem as if it still has some flaws which should be ironed out.
I take it there will be a sequel?