Bloons Tower Defense/YMMV


 * Demonic Spiders: Dang these Yellow and Pink bloons move too fast! Oh, hey, a rainbow bloon... AH! That was close... Whoa, look at the size of this one. What's M.O.A.B. stand for? (*psst* it stands for "hope you've got enough cannons")
 * In BTD2, it was the black bloons who fit in here- they were the only bloons to be immune to cannons, and since the strongest bloon was the rainbow bloon, cannons were used a lot. The only option against a frozen black bloon were the upgraded boomerangs, which fired in a rather strange pattern. Later installments gave the cannons shrapnel to deal with black bloons.
 * From BTD5... Regenerators... Regenerators... Regenerators...
 * Camo bloons in BTD5; Every bloon they contain is a camo bloon in itself. Add that to the fact that only a few towers can spot camos, and well, prepare to lose a lot of lives.
 * Game Breaker: Depending on how early you buy them, Super Monkeys and Banana Farms. Also, this game on high levels can be considered a PCU breaker when there's too much happening onscreen. Minimize your window to hear things at their regular speed.
 * More Popular Spinoff: Not everybody remembers the original Bloons game.