Staggered Animation Playback

class Example extends Phaser.Scene
{
    constructor ()
    {
        super();
    }

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v410');
        this.load.spritesheet('muybridge', 'assets/animations/muybridge01.png', { frameWidth: 119, frameHeight: 228 });
    }

    create ()
    {
        const config = {
            key: 'run',
            frames: 'muybridge',
            frameRate: 15,
            repeat: -1
        };

        this.anims.create(config);

        //  Each frame is 119px wide

        const group = this.add.group();

        group.createMultiple({
            key: 'muybridge',
            frame: 10,
            repeat: 7,
            setOrigin: { x: 0, y: 0.5 },
            setXY: { x: 0, y: 300, stepX: 119 }
        });

        this.anims.staggerPlay('run', group.getChildren(), -100, false);
    }
}

const config = {
    scale: { mode: Phaser.Scale.FIT },
    type: Phaser.WEBGL,
    parent: 'game-container',
    width: 952,
    height: 600,
    backgroundColor: '#efefef',
    scene: Example
};

const game = new Phaser.Game(config);