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Weeeeeeeeeeeellllllllll..... as someone who has dedicated a good chunk of his life watching old school mecha, I can honestly attest to how it just doesn't add up to any of the atmosphere I got from gurren lagann. Sure it has a good deal of references (how lagann is literally a walking Hover Pilder from Mazinger Z) but it just doesn't feel like the 'hot blooded teenager / kid gets to pilot super robot with a slew of random tools' feel from the other shows
yah it definitely feels different (which personally I enjoyed) from like clips of the old stuff. I guess I just meant it went larger than any other mecha anime out there, which I can admire