Sure! Here's an example of a simple game with a 3D character, ridged bodies, and a joystick control on a flat terrain. Please note that this is a basic implementation using JavaScript and HTML, and it might not work as expected in all devices or browsers. Also, due to the limitations of text-based communication, I can't provide pictograms directly in the answer.
To play the game, you can copy and paste the code into a new HTML file, save it, and then open it in a web browser (preferably on a smartphone or with device emulation enabled in the developer tools). The game features a character that can be moved using a virtual joystick displayed on the screen.