Fix: slice and push word list

src/game/typing/word_flyingsaucer/game.js

@@ -35,6 +35,15 @@ var WordFlyingSaucer = {
 			(function() { this.gameOver(); }).bind(this)
 		);
 
+		// keyboard shortcut
+		this.keyboardShortcut = new KeyboardShortcut();
+		this.keyboardShortcut.addCallback(
+			Phaser.KeyCode.ESC,	// keyCode
+			null,	// keyDownHandler
+			(function() { this.back(); }).bind(this),	// keyUpHandler
+			"keyboard_test"	// callerClassName
+		);
+
 
 		// game stage
 		this.drawBackground();