CODE EXAMPLE FOR JAVASCRIPT

change y scale phaser

function preload ()
{
    this.load.image('atari', 'assets/sprites/atari130xe.png');
}

function create ()
{
    //  setScale sets the x and y scale values (1 = no scale)
    this.add.image(100, 300, 'atari').setScale(1, 0.5);

    this.add.image(400, 300, 'atari').setScale(1, 2);
    
    var image2 = this.add.image(700, 300, 'atari');

    //  You can also set the scale via the scaleY property:
    image2.scaleY = 4.5;
}