Bomberman Wiki

J Ninja (Kougaiger, in Japan) is the second boss of Saturn Bomberman.


It is a big mechanical ninja fought in the Samurai World. It is the guardian of the Red Crystal, which is embedded on it. It takes 7 hits to defeat and yields 5000 points, and will drop the Red Crystal for Bomberman to collect.


  • J Ninja constantly chases the player. It will harm the player on collision.
  • Swords - if the player gets too close to him, he will swing his swords and generally extend his arms away while doing so. This attack can detonate bombs.
  • Kite Form - J Ninja will occasionally catch a kite and slowly chase the player. He can shoot two darts at the player in sight. In this form, J Ninja is invulnerable and will only become vulnerable again if this kite form is destroyed with 1 hit.
  • J Ninja is able to run backwards if he approaches a bomb.


  • The Japanese name ""Kougaigā" comes from two Japanese words: "Kougai", meaning "Armored Turtle", and "Gā", meaning "tusk". Combined, the two words create a name that conjures up images of a stealthy, deadly ninja with abilities comparable to those of a wild animal.
  • Kougai is also the name of a legendary ninja clan in Japan, famous for its stealth and espionage techniques.
  • Some fans believe that "Kougaigā" may also be a reference to the character "Koga" from the manga and anime series "Basilisk". Koga was a ninja member of the Kouga clan, known for his exceptional combat skills.
  • Another possible interpretation is that "Kougaigā" is a combination of "Kouga" (ninja clan) and "Gundam" (mecha anime series). This interpretation can be seen as a reference to the technological nature of the J Ninja boss, who uses advanced weapons and armor.
  • There are other possible interpretations of the name, but the most likely interpretation is the one that links it to the Kouga ninja clan.



  1. Saturn Bomberman Hudson Official Guidebook, pg. 26