Bloonjitsu is the 4th upgrade on Path 1 for the Ninja Monkey in BTD6. This upgrade allows the Bloonjitsu Master to throw 5 shurikens at once instead of 2. Every time it throws out shurikens, a spray of 5 shurikens at a slight angular deviation per shuriken will be shot out. Each shuriken pops 4 bloons each, and shuriken attacks are shot every 0.42s.
Just like its BTD5 counterpart, Bloonjitsu is decent as an early mid-game option on its own, more specifically with the Seeking Shuriken crosspath. Even though both Distraction and Seeking Shuriken are mutually exclusive for a Bloonjitsu, Bloonjitsu is a superior early mid-game carrier with Berserker Brew or Stronger Stimulant, as this increases the damage of all its shurikens by +1 plus extra pierce for basically full uptime. 4-0-1+ Bloonjitsu + Stronger Stimulant is a popular combo among many CHIMPS games because of how powerful the combo is.
Generally, the Path 3 crosspaths, particularly with the Seeking Shuriken upgrade, is better as it massively helps the Bloonjitsu to make use of its fairly large pierce, relatively high attack speed, and relatively high numbers of projectiles.
This becomes more relevant when the Ninja is Alchemist buffed as its max pierce becomes a whopping 35 (across 5 projectiles), and each shuriken will deal effectively double damage!
With Seeking Shurikens, the Bloonjitsu can also have Caltrops for slightly more overall popping power via regular caltrop attacks onto nearby track. Caltrops placed on the map even keep their Alchemist buffs even if the brew wears off after placing the caltrops.
Arguably, Distraction is more useful late game because it falls off from being reliable DPS later on, although Shinobi Tactics spam often deals with that aspect just as effectively as one Bloonjitsu with Path 2 upgrade crosspaths.
Bloonjitsu Ninjas are among the best candidates for Berserker Brew and Stronger Stimulant, even after the Version 6.0 Alchemist nerf. This is because they do not shoot so fast as to expire potions so early but at the same time shoots many projectiles at once with good overall pierce and damage. As a result, take caution when upgrading a Bloonjitsu further to Grandmaster Ninja and/or buff with many Shinobi Tactics ninjas, as these two methods will cause the ninja to use up the buff quicker, though either are not bad options with Alchemist brews even with fast expiry.
In fact, a 4-0-2 Ninja + 4-x-x Stronger Stimulant can solo up to Rounds 52 with almost full ease on almost all maps with decent range for the Ninja.
One 4-0-2 Ninja costs $5835 on Hard Difficulty.
Bloonjitsu did not receive any balance changes since it was first released in BTD6. However, it can no longer have both Distraction and Seeking Shuriken at the same time, as those upgrades are mutually exclusive as crosspaths for this upgrade.
As with all Ninjas, there is a Camo Prioritization target option available that may be useful in niche situations involving Camos.
As ninja is the ‘Camo Specialist' and has been since inception, it is the only tower that will unlock Camo Prioritization on the base tower. [...]