Fix: reset record score to 0 when game starts

src/game/mouse/space_invaders/game.js

@@ -2,6 +2,7 @@ var Game = {
 
 	create: function() {
 		this.dbConnectManager = new DBConnectManager();
+		sessionStorageManager.setRecord(0);
 
 		this.game.stage.backgroundColor = "#000000";	// '#4d4d4d';