JavaFX can be used to create games using its rich set of graphics and multimedia features. Here are some of the key components and techniques that can be used to create games in JavaFX:

1. Scenes and Stages: Games typically have multiple screens, such as a main menu, gameplay screen, and game over screen. In JavaFX, you can use Scene and Stage classes to manage the different screens.

2. Graphics: JavaFX provides a rich set of graphics features, including shapes, images, animations, and visual effects. These can be used to create game elements such as characters, backgrounds, obstacles, and special effects.

3. Animation: JavaFX provides a powerful animation API, including the Timeline and KeyFrame classes, which can be used to create complex animations and visual effects. These can be used to create dynamic game elements, such as moving characters, particle effects, and explosions.

4. Input handling: Games typically involve user input, such as keyboard and mouse events. In JavaFX, you can use event handling to respond to user input, and the AnimationTimer class to handle real-time game updates.

5. Audio and video: JavaFX provides support for audio and video playback, which can be used to add sound effects and music to your game.

6. Game engines and libraries: There are also a number of game engines and libraries available that use JavaFX, such as FXGL, JGame, and JFXGL, that provide additional features and tools specifically designed for game development.

To create a game in JavaFX, you typically start by creating a main game loop that updates the game state and renders the graphics. You can use the AnimationTimer class to handle the game loop, and the GraphicsContext class to draw graphics on a Canvas or other node. You can then use event handling to respond to user input, and audio and video playback to add sound effects and music.

Overall, JavaFX provides a powerful and flexible platform for game development, with a wide range of tools and features that can be used to create games of all kinds.