Power-Ups and Special Bubbles:
As you progress through the game, you will encounter power-ups and special bubbles that can help you clear the board more easily. These power-ups include bombs that explode and clear nearby bubbles, lightning bubbles that clear all bubbles in a straight line, and color-changing bubbles that can be used as a substitute for any color.

In addition to power-ups, there are special bubbles that have special properties. For example, there are stone bubbles that cannot be popped and must be cleared by hitting them with other bubbles. There are also ice bubbles that freeze nearby bubbles, making them harder to pop.

Challenging Levels:
Bubble Bust! 2: Bubble Shooter features hundreds of levels, each with its unique layout and challenges. As you progress through the levels, the difficulty increases, making it more challenging to clear the board. Some levels may have obstacles, such as walls or floating platforms, that require careful strategy to overcome.

To advance to the next level, you must clear all the bubbles on the screen. However, be careful not to let the bubbles reach the bottom of the screen, as this will result in a game over.

In-Game Currency and Upgrades:
Bubble Bust! 2: Bubble Shooter features an in-game currency called coins, which can be earned by completing levels or purchased with real money. Coins can be used to buy power-ups and upgrades that can help you progress through the game more easily. For example, you can upgrade your shooting speed to shoot bubbles faster or increase the number of bubbles you can carry at once.

Social Features:
Bubble Bust! 2: Bubble Shooter also includes social features that allow you to connect with friends and compete against them. You can sync your progress across devices using your Google Play Games account and compare your scores with friends on the online leaderboard.

Tips and Strategies:
- Plan your shots carefully. Think ahead and aim for clusters of bubbles to create chain reactions and clear more bubbles with each shot.
- Use power-ups and special bubbles strategically. Save them for later levels or when you are in a difficult situation.
- Take advantage of bouncing shots. Sometimes, shooting a bubble off the wall can create a better angle to hit your target.
- Pay attention to the colors of the bubbles coming next. This will help you plan your shots and make sure you have the right colors to clear the board.
- Don't rush. Take your time and analyze the board before making each shot. One wrong move can make it harder to clear the board.

In conclusion, Bubble Bust! 2: Bubble Shooter is a fun and addictive game that offers hours of entertainment. With its colorful graphics, challenging levels, and various game modes, it is a must-play for bubble shooter enthusiasts. So download the game now and start popping those bubbles!