game.js

import Phaser from 'phaser'

function preload() {
    this.load.setBaseURL('http://labs.phaser.io')
    this.load.image('sky', 'assets/skies/space3.png')
    this.load.image('logo', 'assets/sprites/phaser3-logo.png')
    this.load.image('red', 'assets/particles/red.png')
}

function create() {
    this.add.image(400, 300, 'sky')

    const particles = this.add.particles('red')

    const emitter = particles.createEmitter({
        speed: 100,
        scale: { start: 1, end: 0 },
        blendMode: 'ADD',
    })

    const logo = this.physics.add.image(400, 100, 'logo')

    logo.setVelocity(100, 200)
    logo.setBounce(1, 1)
    logo.setCollideWorldBounds(true)

    emitter.startFollow(logo)
}

const config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    physics: {
        default: 'arcade',
        arcade: {
            gravity: { y: 200 },
        },
    },
    scene: {
        preload: preload,
        create: create,
    },
}

const game = new Phaser.Game(config)