Pause and Resume Game in Phaser 3

If you just want to freeze a character, you can use this.sprite.body.moves = false;

In phaser3 you can have several scenes running in parallel. So you can create a new scene with the resume button and pause the current scene. If you have 2 scenes A e B you can do:

# In scene A
this.scene.launch('sceneB')
this.scene.pause();

# Then in sceneB, you can return to sceneA:
button.on('pointerdown', function() {
    this.scene.resume('sceneA');
    this.scene.stop();
})

Call game.scene.pause("default") if you have only the default scene. If you have more call it like this game.scene.pause(sceneKey).

Docs at: https://photonstorm.github.io/phaser3-docs/Phaser.Scenes.SceneManager.html