Joke Tower

is a Special Agent. It can tell jokes to you, the bloons and the Monkey. It costs 250MM. The jokes mostly does nothing, but it have a 20% chance for you, the Bloons and the Monkeys to be stunned for laughing. It has 100 jokes to tell. If a tower or bloon has heard all the bloons already(Will not stack up for the same type of bloons/tower), their laugh chance will be decreased to 10%, then 5%, and finally 0%.

Pro
When you place the Joke Tower 20 times (5000MM), you will have Joke Tower Pro. It now has 200 jokes, which it's laugh chance will be increased to 40%! If all the jokes are heard by a tower or bloon, again, their laugh chance will be 30%, 20% and staying at 10%.

Epic
When you have placed the Joke Tower 50 more times (1250MM), you will unlock Joke Tower Epic. It will now have infinity jokes, and the towers/bloons laugh chance will be 75%.

Trivia

 * I haven't seen any Joke Conceptions are literally jokes, so....