Can someone Tell me how to beat Ansem on destiny island (alone) Hes just to hard.

I know what you mean it took me awhile to beat him. When Ansem uses the ability were he charges at you try and glide to dodge it, when everything goes dark and his heatless comes out of the ground try to glide and when you land jump and glide again then just attack him when you can

for this battle your best friend is the dodge roll. when I do this I just keep running around using the dodge roll to quickly move out of the way of any fast attacks. The main point is that you have to keep moving.

Just keep moving around and using dodge and roll.

When he charges at you you could guard and he bounces off you then you can attack. It worked for me and it may for you. When the heartless comes out the ground, you could use the move when you throw your keyblade, which makes you invincible for the time being.

Hope that helps you.

Of course, it helps if you have items available. You probably have elixirs equipped. If you haven't been stocking them, then start doing it.

Superglide and dodge roll are necessary for minimizing damage. Casting Aeroga whenever possible is a help. It reduces damage and reflects several of Ansem's attacks (such as the attack where he flies back and forth across the area).

When Ansem stops moving and becomes surrounded in a dark aura, his guardian will leave his side. Dodge roll continuously around the area. Don't stop until the guardian has ceased pursuing you.

If, at any point during the fight, the guardian becomes attached to you, refrain from attacking...period. Even if the guardian doesn't prevent you from attacking, Ansem is invulnerable while his energy shield is up. Do your best to stay away from Ansem, as his shield will damage you upon contact. You could use Ars Arcanum or Ragnarok to inflict damage despite the shield, but I'd focus your MP on Curaga and Aeroga.

Land combos when you can and keep moving when Ansem is on the attack.

The fight actually isn't that difficult.