Sure! Here's an example of a simple game about fireworks that meets your requirements. It allows the player to click and spawn fireworks, earn money to unlock firework skins and particle skins:
To play the game:
1. Save the code above into a single HTML file (e.g., `fireworks_game.html`).
2. Open the HTML file in a web browser on your smartphone.
3. Each time you tap/click on the canvas area, it will spawn a firework with particles that move randomly.
4. You earn money for each firework spawned, which you can then use to unlock different firework skins and particle skins.