Sure, here's a basic implementation of a parkour game where a clown is chasing you and you have a shotgun. The game is designed for smartphone operation and uses pictograms to represent the elements.
In this implementation, the game uses pictograms for the player, clown, and shotgun. You can replace `'emozi_all/game.png'`, `'emozi_all/clown.png'`, and `'emozi_himawari.png'` with the actual image files you want to use. The game starts when the page loads, and you can control the player's movement by swiping left or right on the game screen. The clown gradually moves towards the player, and if the player and clown collide, it's game over. The shotgun pictogram represents a power-up or collectible item that you could implement further if desired.