[Matrixbeast]

Episodes 32 and 33.
First was an interesting play on the boy who cried wolf, with Shoji using the Aura Changer to wake Ryo up, but then Ryo ignoring it the second time after a Gouma attack. Rather than have it be the same lesson on lying, they put the issue on Ryo's shoulders of doubting a friend.
It wasn't anything special. Gouma had one hell of a kick, though.

33 was another beast, though. Rin falling in love with a Gouma, and the Gouma loving her back, going so far as to halt his plan to save her. It didn't anticipate it, as I was expecting him to pull a Frozen "I never loved you" kind of non-twist. It was hard to watch him die protecting a weakened Rin from Gara, and then having Rin kill his rampaging giant form.
I like it when a series shows it's villains having a heart. I like it even more when it's tragic, as it shows why they don't just defect at moment's notice, having such consequences be evident that surviving is more difficult. Still, it was a touching episode. I'll miss ya, Media Magician.
Probably the best one off episode in the series (Granted, I still have 17 episodes to go).

Aside: I think this was the first episode to feature DaiRenOh being directly piloted by someone other than Ryuuranger, as even in episodes centered on other characters, Ryuuranger was always the one front and center in the cockpit (Granted, the focus character would still call out the attack).