Here's why.
But man I don't even know where to begin and I didn't get around to Xenogears finally until a bit later, probably somewhere in 2006-2009. Funny enough I played Xenosaga 1 first. Also funny that I had two friends show me Xenogears growing up and I just wanted to fall asleep watching them play it, but I was always really interested in it and knew it's just one of those things you have to play and can't watch. I think it was in the $50 range when I finally got around to it before the PSN release, so maybe that's why it took me awhile. I have no idea.
There's just some things in life you're destined to love. Xenosaga was probably the ultimate catalyst for sparking my love for mecha anime, before I got really into anime in the mid 2000's. I grew up loving Mega Man more than Mario and Sonic, which cemented my love for all things robots and sci-fi. Then there's my undying love for Kojima and Metal Gear Solid, and ridiculously convoluted and insane Japanese storytelling and Tetsuya Takahashi is probably the craziest creator of them all. When there's more than black and white, good and evil, it always captivates me far more. In the JRPG world he has done it best to me next to the Suikoden series and some of Matsuno's work with Tactics Ogre, etc. The Xenogears roster is incredibly layered with tons of characters, personalities, and separate ambitions. And not a huge spoiler as new players probably can't figure out who the main antagonist even is until the very end, but rarely do you get a game where you don't even actually fight the main antagonist. I've also never been the biggest Evangelion fan, but I absolutely love how anime Xenogears is pulling in all the 90's tropes and surpassing most anime themselves. Many could probably argue Chrono Cross is Mitsuda's finest achievement, but Xenogears and its sci-fi tones make it one of my absolute favorite OST's of all time.
My favorite ingredient to dabble onto sci-fi is weird religious overtones. So I absolutely love those elements in Xenogears. Which get taken to even more ridiculous [amazing] levels in Xenosaga.
People complain about the second disc, but I could have enjoyed even more novels thrown at me by that point (as I was just taking in all the Xenosaga cutscenes too, they could keep on coming and I'd be in heaven. I could watch that stuff forever, the best Japanese directed stuff next to MGS to me). My counter argument has always been that it's a 50 some epic hour journey with great pacing up to that point, so I don't mind that it goes full visual novel.
But that's perhaps the icing on the cake. If Xenogears were fully, 110% complete and completely fleshed out, I don't know what I'd do with myself. Because the end product is still already an 11/10 for me. Certainly a lot of "what if's" though, but it's not like you're left without a conclusion or whatnot, so they salvaged things fine to me if you're ready to read and sink deep into that lore.
It was just perfect and resonated with me in every single field.
So that's full fanboy mode.
For some balance, I do have a few complaints.
- Ground player combat was incredible and way more fun than mecha combat. But mecha combat becomes the central focus and probably makes up 60-70% of the game in the end.
- It's ugly. I played Breath of Fire 4 before Xenogears and they both kind of have that weird, pseudo 3D thing going with sprites on top, but Breath of Fire 4 only allows you to rotate the camera at 4 angles, so it's always a flat sharp image. Xenogears' free open camera makes for some pretty wacky visuals. But obviously as a retro fan this doesn't stop me from loving something of the old.
I think I'm the only guy in the world that has played, beaten, and loved Xenogears, Xenosaga 1-3, and Xenoblade. So maybe some might understand my frustrations in hearing that Xenoblade X's story... well, I never hear about it, ever. That saddens me greatly and now under Nintendo's ship, I don't know if we'll ever get to see another insane Tetsuya Takahashi story again, but I'll keep crossing my fingers. But Xenogears didn't impress Square enough and Xenosaga was extremely niche', so I fear he'll never go back to things like that again.
Xenosaga is a far more imperfect journey with its troubled development and changes between three games, but in ways I like it even more (it's intergalactic scaled sci-fi, with an in game Bible in Xenosaga 3) and I think Xenosaga 3's second half surpasses Xenogears at its best. But I give Xenogears props for being a good complete package in comparison. Someday I want to play undubs of Xenosaga and it'll probably make me love it even more.