Add: alien for test

src/game/mouse/space_invaders/main.js

@@ -5,7 +5,8 @@ const CONTENT_ID = "Space Invaders";
 
 let game = new Phaser.Game(
 	GAME_SCREEN_SIZE.x, GAME_SCREEN_SIZE.y,
-	Phaser.CANVAS, CONTENT_ID
+	Phaser.CANVAS, CONTENT_ID,
+	this, false, false
 );
 
 game.state.add('Loading', Loading);