1. Start the game by clicking on the "Play" button.

2. The game consists of a series of levels, each with a different objective to complete.

3. The goal of each level is to defeat the swamp monsters and protect the Teen Titans' tower.

4. Use the arrow keys or swipe left or right on the screen to move your character (Robin, Cyborg, or Raven) and the spacebar or tap the screen to attack the monsters.

5. Collect coins along the way to earn points and purchase upgrades for your character, such as new weapons and power-ups.

6. Be strategic in your attacks, as different monsters require different approaches to defeat them.

7. As you progress through the levels, you'll encounter new monsters with unique abilities and challenges.

8. Try to complete each level with as few attacks as possible to earn a high score.

9. You can use the coins you've collected to unlock new characters and levels.

10. Keep playing to improve your skills and beat your high score!