Ass Pull: Colonel Shadam being revealed to be a clay doll replica upon his death, despite being responsible for all the Gohma clay dolls (which also qualifies as an Ass Pull on its own, and to a lesser extent, a Shocking Swerve).
Awesome Music: When they pull their roll call, one of the most awesome songs played in Sentai history is played. It really fits the scene.
Nightmare Fuel: Surprisingly NOT the monsters, but Ryou's Training from Hell. Imagine you are attached with A LOT of steels that makes your whole body bleed, and you're supposed to go through an extensive training while doing that, and all the while, your body just go through pains and through. Ryou's screams of pain just sounded off... creepy...
Tear Jerker: Iron Face Choryu's death, set to a heartbreaking rendition of the show's ending theme. That is all.
Vindicated by History: It was, due to a Tough Act to Follow by Jetman (in spite of Zyuranger being chronologically sandwiched between them). This generation seems to be more forgiving, since Kung Fu and Martial Arts are awesome, mix that with Sentai and whoooah.
Visual Effects of Awesome: The Ryuseioh puppet remains one of the most impressive mecha models in Sentai history. There's a reason why it gets shown off so much in the opening credits.
The Dairen-oh outfit also looks very easy to move in. The movements are surprisingly fast, smooth, and impressive.
The Woobie: Love him or hate him, Kou has been through a lot of bad situations whether it be his father Shadam, his twin brother Akomaru, being branded as a kindergartener by his own mother, or that awful prank Rin and Shouji use when we first met him.