|When||September 14—28, 2009|
The Ninja Construction was an event that occurred in September 2009 at the Ninja Hideout. It resulted in the opening of the Fire Dojo and the release of Card-Jitsu Fire. It occurred at the same time as Sensei's Fire Scavenger Hunt.
- There was also a Card-Jitsu Water construction.
- The construction hole in the Ninja Hideout was replaced with the three element tiles when construction was finished. It now resembles an amulet.