KH2: How are you 'meant' to fight Demyx?

[Blind]

I brute forced it, but when he's down to last life bar you can be juggled indefinitely. Can't block or reflect the water pillars or the water orbs either... however, with enough life and healing you can just weather the infinite combo until the dance water dance, which ironically becomes a safe breather.

probably coulda rolled, but, like, was using Guard.