you requested, here is a simple implementation of a game similar to Hill Climb Racing 2 using JavaScript. Please note that this implementation is quite basic and may not have all the features of the actual game.
To run the game, save the above code into a file with the extension ".html" and open it in a web browser on your smartphone. You can control the car by implementing the logic for the `rightKeyPressed()` and `leftKeyPressed()` functions.
Please note that this is just a basic implementation and does not fully replicate the features and mechanics of the actual Hill Climb Racing 2 game. It is meant to serve as an example and can be further expanded and customized according to your needs.