Sorry this game just isn't enjoyable after the first few kicks as the length of time of each 'kick' gets longer and longer. I would have prefered it if there was more player involvement (E.g. choice of upgrades as in when to upgrade, choice of launch angle etc.) However, don't give up!
Bug: I can place monsters/traps on one square and then when they die/get destroyed I cannot replace them on the same tile. This messes up any strategy.
I dont know if this will work in the game but some part of me would actually like the monsters to 'level' or get stronger if they do manage to beat a hero.
Lag makes this game unplayable. And before I get flames that I need to get a better computer I can tell you it is neither my connection nor the computer.