Besides the chatting system, which obviously a bajillion people already want, 3 things would make this game a lot better.
1. Customizable smileys, and not just the faces. Colors and possibly shapes too. This allows you to stand out better in a crowd.
2. A level rating/feedback system. That way, people can know, at least on the Locked levels, which they should play
5/5 for the game. Easily one of my favorites. These three changes would make it almost perfect.
Dear sdfweiwe, Thanks, but we're not going to go to your site, because when we come to Kongregate, we come to play games, not get lured away by clothing.
Just 2 tiny suggestions. 1. Have advancing a wave early give you a bonus, however small or large, of experience. Leveling up would go at least a little faster that way. 2. Give every enemy type a different value of gold. Having EVERY enemy give you only 1 gold can kill whatever rank you're trying to get.
In a recent tragedy, a teacher walked into a school of fourth graders while unknowingly carrying a bomb. The students, who were supposed to be learning long division, instead got a face full of teacher. The are scheduled to be in rehab for the next 20 years.