Sure! Here's an example of a simple 2D pixelated game implemented as a single HTML file. The game involves Spiderman fighting the Green Goblin, performing parkour, and saving J. Jonah Jameson. Please note that this is a basic implementation and can be expanded further based on your requirements:
In this example, the game area is represented by a 400x400-pixel div with the ID "game." Spiderman, the Green Goblin, and J. Jonah Jameson are represented by square divs with their respective colors and IDs. The game implementation is inside the script tags, where the `startGame()` function initializes the game by creating the game objects and starting the game loop.
The `moveSpiderman()` and `moveGreenGoblin()` functions can be further expanded to implement the actual movement logic based on touch events or accelerometer inputs for smartphone operation. Similarly, the `checkCollisions()` function can be expanded to detect and handle collisions between the game objects.
Remember to add your game logic, images, and appropriate actions within the functions to make the game functional and enjoyable.