|This article is about a/an episode in Himitsu Sentai Gorenger.|
Blue Shadow, Variblune Secret Strategy (青い影法師 バリブルーン秘密戦略 Aoi Kagebōshi Bariburūn Himitsu Senryaku) is the ninth episode of Himitsu Sentai Goranger.
When EAGLE's new freeze beam and Ooiwa are captured by a Masked Monster, Shinmei must figure a way to save his mission partner and their squad's weapon.
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- This episode aired on NET the same day episode 10 of Kamen Rider Stronger, The Frightful Gummer Bug! It Targets Humans!!, aired on TBS.
- First Sentai episode directed by Itaru Orita, who had directed several Kamen Rider episodes and would become the main producer of Battle Fever J and every Metal Heroes series from Uchuu Keiji Gavan to Kidou Keiji Jiban.
- This episode debuts a cosmetic change to the Goranger Storm finisher, which up to this point appeared as a simple silver ball that was passed amongst the team before being kicked by Akarenger. From this episode, Momorenger would produce a ball that initally appears pink; this ball changes color as it goes to the different team members before becoming a red spiked ball for Akarenger's attack.
Himitsu Sentai Gorenger Volume 2 features episodes 7-12: Ep. 7: Pink Moonlight! Wolf Corps, Ep. 8: Black Fear! The Murderous Poison Fang, Ep. 9: Blue Shadow, Variblune Secret Strategy, Ep. 10: The Red Balloon! Wind Speed at 100 Meters, Ep. 11: Green Shudder! The Escape From Ear Hell, and Ep. 12: Super Energy of Silver! Burning Hell. 
Blu-ray Box 1 comes with 16 episodes.