Piercing Darts

Effect
The Piercing Darts upgrade is an upgrade for the Dart Monkey. This upgrade allows Dart Monkeys throw darts that pop 2 bloons at a time. However, the targeted Bloons need to be relatively near the Monkey in order for the Piercing Darts to have the two-pop effect. Also, you cannot pop one bloon twice in one shot (a good example being that you cannot pierce a Green Bloon with one Piercing Dart and have it pop down to a Red Bloon).

Appearance
The appearance of a Piercing Dart Monkey is the same as that of a regular Dart Monkey. The one exception is in BTD4, where it has a little stripe on it to indicate its rank.