Sure, here's an example of a simple bouncing spikeball game implemented as a single HTML file with JavaScript. It should work on all devices, including smartphones. The game uses pictograms to represent the spikeball and the wall.
To play the game, you can copy the entire code into a new HTML file and save it with a `.html` extension. Then open the file in any web browser on your smartphone or computer. You will see a spikeball bouncing inside a game area. If the spikeball hits the bottom wall, it will bounce back and the wall will get wider.