can Kong filter out any game that says "the best game!"? I'm sure it would be a temporary fix and people would start re-naming the game and sneak it in, but it would be a start.
considering the "Play more games" link before the game takes you to a different site than you y8.com, and y8.com itself is just a repository for games, you do not have much credibility.
the line's sensitivity needs to be adjusted. I would make a tower and have a peak of a boulder over the line, but that wasn't "good enough" to qualify.
making something hard just for the sake of it being hard isn't good. Making something hard so it presents a challenge that you have to think about and work out a solution is good. This isn't a puzzle game so making it harder just because you can is going to make people not play it.
choppy and hard to place towers where you want them. Plus, if you have a tower under where the "upgrade" rune gets drawn on the screen, you can't get to it to upgrade it.