Not the *entire* series in one go, since that'd be an incredible undertaking, but that's sort of how I play the Kingdom Hearts series and I kinda like absorbing that series that way. After briefly trying the series a few times throughout my life (including playing most of Chain of Memories at one point, which remains my favorite in the series) I finally locked in around early 2023, first playing KH1 and deciding to pursue the entire series once KH1 had lodged its hooks into me LOL.
I had a lot of fun with Kingdom Hearts, they're very cute action-RPGs and I got a lot of enjoyment out of its uniquely long-lasting and increasingly complex story. I have as of now done two major blitzes of the series as of now, first going thru the original Kingdom Hearts until I stopped in the middle of Birth by Sleep, and then in late 2024 or 2025 I played thru Birth by Sleep and ended up losing steam in the middle of Kingdom Hearts 3. It may not sound impressive that my KH binges are averaging about 4 completed games per session, but they are all long, fully featured action-RPGs! I have to take a year or so to detox but when I'm in the Kingdom Hearts mood I eat those games up like nobody's business