average
kinda felt a little rushed like you didnt test it alot like the second map is all misty or whatever but it just makes it difficult to look at for a long time
id also say it takes too long to gather the money and colour points to keep me interested since you can pretty much get by with only the first type of tower
would have preferd it if the colurs had combined so that a flame tower plus gold tower makes a flaming cold tower as thats kinda what i assumed it would be
other than that its a good tower defense game