Sure, here's a simple Pogo Stick game implemented as a single HTML file with JavaScript:
Pogo Stick Game
Score: 0
This game is developed for smartphone operation and uses pictograms represented by colored blocks. The player can control the pogo stick by tapping/clicking on the game screen to make it jump. The goal is to avoid collisions at the top and bottom of the game container for as long as possible, and the score increases by 1 every second.
Please note that this is a basic implementation and you can modify and enhance it further based on your preferences and requirements.