You know ninjakiwi, I think you should update this game. Because if you go to Ninjakiwi.com and look at bloons tower defense 4, you'll realize that there are 3 new FREE tracks, a mode where challenges are available, and even a brand new tower.
Essentially, this is just a bullet heaven game.
The main difference between this and other games is that this is very creative, putting your songs as songs in the game
Truly genius idea
Once again, Nerdook, you've outdone yourself in an amazing way, with a truly original concept and fantastic music to compliment this game. My only complaint, though, would be that I would like it if there were another control scheme, since controlling with the mouse is rather difficult at times and would like it if there was a keyboard control scheme.
Thanks for the amazing game Nerdook
-Potatoguy11 :D
This was a really good game. Very original game. I love the whole game, but I would like to make a suggestion: A sell button, since once you put an item such as a buzzsaw, you can't sell it.
I think everyone is taking the kred issue too serioiusly. It is OPTIONAL, I beat the extreme level on hard without kreds. The only thing ninjakiwi wants is to gain a little money from all the hard work they do.
I found a strategy for the first part of medium badge#1. First, you put a boomerang monkey in the second corner, then, you put 5 more to the left. When the camo bloons start to appear, get a monkey ace, and upgrade it to spy plane, after that, buy 5 bomb cannons and upgrade them to the fourth upgrade, if you have it, if not buy more and upgrade them to the 3rd upgrade, you should put a glue monkey in the first corner, and put more boomerang monkeys to the left and start upgrading them to level 4. After that it should be pretty self explanitory
does anyone remember when bloons was actually fun. Not saying that btd4 isn't but Ninjakiwi needs to take out the kreds, and let anyone put a custom track.
 "Bloons Tower Defense 4"){kind=icon}
 "Jacob and the Gyrocopter"){kind=icon}
 "Dreamsong Catcher"){kind=icon}
 "Epic Combo!"){kind=icon}
 "ShellShock Live"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}