Applying gravity to a character controller object in 2D without a rigidbody?

[system]

how would i apply gravity to my player, without a rigidbody, because he wont fall when i start the game, like it should.

[Loius]

transform.position.y += Vector3(0,localGravity*Time.deltaTime,0);
localGravity -= 9.81 * Time.deltaTime;

The problem is you won't get any collisions with that. If it's a character controller you should just add that movement to its current Move command.