Joke Bloon

The Joke Bloon is a bloon that pops up somewhere on the screen (often in the corner) and that is totally immune to everything. It doesn't move, but instead keeps telling loud, obnoxious jokes in the hope that you will be distracted from the game. It can appear randomly at any time, but doesn't have a very high probability of appearing (you might only see it once every two or three games). Once it has appeared, it remains on the screen until it runs out of jokes (the number of rounds or amount of time can vary, depending on how long it takes you to win rounds, and because it doesn't tell jokes between rounds).