My thoughts about it.
Gokai Silver was first introduced in one of my most favorite Super Sentai crossover movies after Gokaiger Goseiger Super Sentai 199 Great Battle. And like all Gokaigers, he can use keys of past Sentai warriors, mostly sixth warriors such as Dragon Ranger, Mega Silver, Abare Killer, Bouken Gold and so on. I can't wait to see what transformations he might do in Super Megaforce, I sure hope they don't use too much of SPD this time. Not that I got anything against SPD, but the first few episodes of Super Megaforce they had a role. But in this episode, they managed to transform into the Lost Galaxy Rangers.
The final battle between the Silver Ranger and Gorgax was totally spectacular, especially after removing his helmet which was cool. Funny how it took long for sixth rangers to reveal their identities, but in this one, it only took one time to do so. Almost forgot, Cam revealed himself as the Green Samurai Ranger at once in Samurai's Journey Part 2 of Ninja Storm.
God Bless and May The Power Protect You Ranger Fans!