Sure! Here's a basic implementation of the game using HTML, JavaScript, and pictograms. The game is played on a smartphone and follows the concept you described.
To use this code, create a new HTML file and paste the above code into it. Save the file with an ".html" extension. Also, make sure you have pictogram images like `emozi_all/pictogram.png`, `emozi_rabbit.png`, `emozi_all/boss.png`, and `emozi_all/enemy.png` available in a folder named "pictograms" which should be in the same directory as the HTML file.
When you open the HTML file in a web browser, the game will start. The player can use the spacebar key to make the character jump and avoid obstacles and enemies. Every 10 levels, a boss fight will occur. The game ends if the player collides with an obstacle/enemy or fails to defeat the final boss at level 50.
This is a basic implementation, and you can enhance it further by adding more features, levels, power-ups, animations, sound effects, etc., based on your requirements.