You kill xemnas with the help of riku
No. Riku never dies in Kingdom Hearts II.
You can't fight Riku in Kingdom Hearts II.
beat the game as sora
You only get to fight Ansem and his Guardian in Kingdom Hearts and Kingdom Hearts Chain of Memories, while playing as Riku. However, you see the Guardian again when Riku unleashes his darkness to beat Roxas in Memory's Skyscraper.
there is a kingdom hearts 3 for the ps3 but we dont kno if riku dies in kingdom hearts 3
Riku does lots of things in the kingdom hearts games. Riku tries to gain power and fights his friend sora. and he does more stuff
Riku from Kingdom Hearts is Soras friend, he was since he was little. He (from my experience) Is a pretty fun guy but is egoistic. He thinks of himself as being able to beat Sora but still respects him as a friend.
Kingdom Hearts
Wear clothes like Riku.
No you can't. But if you have the Kingdom Hearts 358/2 Days for DS you can play as Riku in mission mode.
You cannot play as him in kingdom hearts 1 but you can in kingdom hearts: chain of memories.