Sure! Here's a sample game that meets your requirements. It's a simple obstacle course game where the player controls a character and needs to complete quests while avoiding obstacles. Since the request mentions using pictograms if possible, I'll include some ASCII art for visual representation. Note that this is just a basic example, and you can definitely expand and enhance it further.
Obstacle Course Game
🚶
🚧
❗
To play the game, open the HTML file in a web browser on your smartphone. Use the arrow keys to move the player character (represented by `
🚶`). The objective is to reach the quest (represented by `❗`) without hitting the obstacle (represented by `
🚧`). Completing the quest triggers an alert of successful completion, while colliding with the obstacle triggers an alert of game over, and the game is reset.
Note: This is a very basic obstacle course game, and you can add more obstacles, quests, levels, and other features to make it more engaging and challenging.