Sure, here's an example of a single HTML file containing a simple game called "Rainbow Friend Quest." This game involves rescuing two escaped rainbow friends through various levels using pictograms. The game is designed for smartphone operation.
Rainbow Friend Quest
In this game, there are two levels represented by the pictograms of a rainbow and a cloud (you can replace them with your own images as needed). The goal is to click on these pictograms to rescue the escaped rainbow friends. Once both friends are rescued, a congratulations message is displayed.
Please note that you will need to replace `emozi_all/rainbow.png` and `emozi_all/cloud.png` with your own image files.