Sure! Here's a sample implementation of a simple 3D Mario-like game where you can grab and kill objects. The game is playable on a smartphone and uses pictograms for visual representation. Please note that this is a simplified example and does not include advanced features like rendering a real 3D world or complex physics.
To try out the game, copy the code into a new HTML file and open it in a web browser on your smartphone. You'll see a red square representing Mario. You can drag and move Mario around. There are also black squares representing enemies and yellow squares representing coins. Mario can kill enemies by colliding with them and grab coins by moving over them. Note that the movement and collision detection in this example are basic and do not fully emulate a traditional 3D Mario game.