Scratch tutorial: How to create Balloon pop game

Tutorial on how to create balloon pop game in scratch, shows the basic game with multi levels. Game starts with basic mode and as time goes the speed increased. This tutorial helps you to start with, you can create advanced mode of full-mode game.
Introduction to scratch from

This tutorial uses the concepts
* Adding multiple sprites: Learn from
* Show and hide the sprite on action.
* Play sound on action.
* Operators,
* Goto block vs glide : Learn from
* Random position: Learn from
* Edge detection:
* Variables:
* Timer