So i beat Sora Mode and im almost done with Riku mode but i cant beat Fake riku for anything. i've leved up and everything but he keeps hitting me with dark aura and then im through. Has anyone beaten him and if so How?

I did It's basically evasion all the way, and healing

I didn't like the game myself so i didn't get that far. I thought the card system was awful.

i thought it was pretty cool.

i played the game and it was Fun and great, i had trouble with sora playing, but riku was very easy to finish for me, so you can do it, just focus.

i love KH and KH2, but i havent played chain of memories, so do i really need it to get the whole story?

no, chain of memory story is just a link between both KH and KH2, lots of its images reviwed in the game KH2 and what happened, of the 13th characters you didnt fight them all in KH2, but the rest were in KH chain of memories, the secret ending in Chain of memories you get to see ROXAS, but afcourse since you played KH2 it wont be a surprised, and also you will know why Riku chosed to become [transfer to ansem ] when he got the choice to free sora from that slumber, in which roxas awakened sora later in KH2.