The game would benefit from an auto-jump feature. It's very annoying to land and press the jump key without anything happening, because you can only jump when you are standing on the ground.
Could have been a good idea to use Kongregate's "User Created Levels" system instead of the code system, since the code system ends up with people spamming their creations in the comments
You should be able to change the towers target priority. I often found my towers shooting a target down to 5-10% HP, then leave it and attack the next.
Remember, it's a kids game, that's why the puzzles are very easy. Fun game though, if there was anything to criticize, it would be the menu layout, it looks like it's made in Microsoft Paint.
This isn't a game, this is a test to see how fast you are. Kinda nifty if you want to see if you can improve your reflexes. Do it once every day for a period of time and see if your score improves.
I don't like it how you can lose the game, and there was no possible way to win (For an example, have 6 yellow rings out then get a green) but was still an ok game.
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