You kind of have to look beyond the "super sentai" thing and see it as it's own thing. Its more like, the era of War machines like X and Zero is over, this time they lend their power to the "new" generation, to a boy who happens to share X's trait of bravery and the desire to protect others.
Zero naturally managed to snag a lookalike, who shares Zero's trait of being the overpowered side/mentor character, as well as his habit of dying and giving his power to the protagonist.
I was never really bothered by the transformation thing. I mean, I guess having stuck with the series for so long, that that kind of thing doesnt really surprise or bother me. It was made slightly better by the fact that not really ANYONE can use these things, they have to be cyborgs who underwent complete replacement.Which then ties into the story presented in ZX Advent, of Albert having placed his DNA in specific chosen ones who are the ones able to use Biometals.
The plot, aside from that, was pretty good I found. Inticreatres really are masters at what they do. they have a real passion for storytelling, and actually write very well. (unlike capcom)
ZX1 itself was for all intents and purposes, Zero 5. I mean youve got X, Zero, the big 4, Weil, and Omega. And the plot revolved around Weil's soul having survived by being part of the entire space station when he merged with it, and thus it's remains drive people crazy and feed on souls and shit.
neat.
I also loved he music.
Green Grass Gradation.
MegaMan ZX~Green Grass GradationWhen Vent first merged with Model X and this played, I was like, AAAWWWWWW YEEEEEAH, X IS BACK, REBORN TO KICK SOME ASS.
And then Model X turned out to be the most broken form in the game. Even more broken than Model Ox. And considering Model Ox has variations of ALL of Omega's abilities and THEN some, thats saying something.
Also, theres the remix of Fate from Zero 4, that plays the intro loop part during the boss encounters, and the full remix during Serpent's transformation scene.
ZX Tunes: Rockman ZX OST, T1-17: Fate - deep-seated grudge -