Crossy Road's main goal is to avoid being hit or sliding off the screen while navigating as many obstacles as possible.

Specifically, the purposes of Crossy Road are

1. Survive and progress: 

- The player guides a character through highways, rivers, and other obstacles.

- The goal is to keep the character alive and moving forward for as long as possible.

2. Points: 

- Players gain points for successfully crossing obstacles.

- The score rises incrementally with each step, encouraging the player to go further.

3. Aim for a high score: 

- The goal is to cross as many obstacles as possible without losing points.

- Players are encouraged to beat their own high scores or compete with friends for the top scores.

4. gather playable characters:

- The game offers a variety of unlockable characters for players to gather.

- Unlocking additional characters increases the variety and personalization of the gameplay experience.

5. Explore new environments:

 - The game presents fresh hurdles and tasks as the player progresses. Exploring these diverse environments is part of the game experience.

The main gameplay loop is around the player carefully time their movements to safely negotiate the obstacles, receive points, and survive as long as possible in order to reach a high score. The game's unending nature makes it addictive and replayable for gamers.