it's... not great. I appreciate what they were going for: take this (also not that great) GBA card game, put it on the same hardware as the big releases, use the fancy character models and have your actors record lines for it. it's just not very fun, is the thing. it's mostly just a rehash of KH1 with some weird memory bullshit going on, with a little bit of actual story. at least the characters introduced in this game are solid, and I think all of the Org XIII characters from it actually matter(?), which is more than I can say for KH2 lol

you've gotta play it for plot reasons, but honestly you'd probably be better off just pulling up a youtube video, unless you're really stubborn