2D Game update

I've finally finished all the 2D platformer lessons. My game is also bug free and so now all the animations work properly. The last thing I've added was a coyote jumping feature where I can jump 3 times more than I usually could. It's helped me avoid enemies attacks. I've also edited the camera to move only when I enter another room so that it's the style of enemies being fought and then moving on to the next room. Below is some of the code and footage that I have done.

private void Update()
    {
        horizontalInput = Input.GetAxis("Horizontal");


        //Flips the player when moving right and left
        if (horizontalInput > 0.01f)
            transform.localScale = Vector3.one;
        else if (horizontalInput < -0.01f)
            transform.localScale = new Vector3(-1,1,1);

        //Set animator parameters
        anim.SetBool("Run", horizontalInput != 0);
        anim.SetBool("Grounded", isGrounded());

        //Jump
        if (Input.GetKeyDown(KeyCode.Space))
            Jump();

        //Adjustable jump height
        if (Input.GetKeyUp(KeyCode.Space) && body.velocity.y > 0)
            body.velocity = new Vector2(body.velocity.x, body.velocity.y / 2);

        if (OnWall())
        {
            body.gravityScale = 0;
            body.velocity = Vector2.zero;
        }

        else
        {
            body.gravityScale = 5;
            body.velocity = new Vector2(horizontalInput * speed, body.velocity.y);

            if (isGrounded())
            {
                coyoteCounter = coyoteTime; //Reset the coyote counter when on the ground
                jumpCounter = extraJumps; //Reset jump counter to extra jump value 
            }
            else
                coyoteCounter -= Time.deltaTime; //Start decreasing coyote counter when not on the ground
        }
    }

private void Jump()
    {
        if (coyoteCounter < 0 && !OnWall() && jumpCounter <=0) return; //If coyote counter is 0 or less and not on the wall dont do anything

        SoundManager.instance.PlaySound(jumpSound);

        if (OnWall())
            WallJump();
        else
        {
            if (isGrounded())
                body.velocity = new Vector2(body.velocity.x, jumpPower);
            else
            {
                //If not on the ground and coyote counter bigger than 0 do a normal jump
                if (coyoteCounter > 0)
                    body.velocity = new Vector2(body.velocity.x, jumpPower);
                else
                {
                    if(jumpCounter > 0) //If there are extra jumps then jump and decrease the jump counter
                    {
                        body.velocity = new Vector2(body.velocity.x,             jumpPower);
                        jumpCounter--;
                    }
                }
            }

            //Reset coyote counter to 0 to avoid double jumps
            coyoteCounter = 0;
        }
    }