Wow, I forgot about this game, I'm going to have to play it again now! :D The only problem is once you get fliers everyone seems kind of.. sucky. Hell, I'd rather play as a chicken than lots of other characters.
Also for anyone looking for tips; when I was doing a technology class in high school we used a bridge building program and made small bridges to test with actual wood in class. Typically the structure is made of triangles as it's a very strong shape. So spread smaller triangles out over a larger area for more strength.
Huh.. seems I beat the third level guy on my first attempt at doing anything in the game. Needless to say, when I went down to the level one guy afterwards it was a piece of cake.
This game is not necessarily bad. It's just that it's absurd to expect somebody who has not put time into it to be able to complete 15 levels. Heck, it took me about an hour to beat 5 levels. Ok, maybe I was also looking at chat.. but you get the idea. Hopefully the rest aren't so time consuming <