Shadow Roxas

The Shadow Roxas is an enemy fought near the end of Roxas's story in Kingdom Hearts II.

Kingdom Hearts II
When investigating the Seven Wonders of Twilight Town, Roxas checks up on the "Shadowy Doppelgänger" myth, and ends up in front of a waterfall. He sees a reflection of himself, which turns into a dark Roxas clone and engages in battle with him. Shadow Roxas is last seen in Kingdom Hearts II after Roxas and friends leave the waterfall, peering out ominously until dissipating into nothingness.

Strategy
Shadow Roxas is very easy in the fact that he only has one ability on him and that is Combo Boost. He uses a Struggle Bat against Roxas. The simplest method is to Guard or deflect his attacks, then hack at him. However, he does not give any experience once he is defeated.

Trivia

 * Shadow Roxas could possibly be a reference to Shadow Sora, which Riku makes in the original Kingdom Hearts, while Sora, Donald, and Goofy are visiting Neverland, although Shadow Roxas is much weaker then Shadow Sora, due to the fact that Roxas's fight with his shadow was at the beginning of the game and the player was weaker, and Sora's fight was more towards the end, and the player has had quite some time to level up.