Sure, here's a simple implementation of a 2D version of Minecraft using JavaScript and HTML:
This implementation creates a 2D game area using HTML and CSS. The game area is divided into a grid of cells, and different entities (grass, player, and pigs) are represented by different colored squares. You can use arrow keys on your smartphone to move the player (blue square) around the game area. The initial entities are placed in the grid, and you can customize it further by modifying the grid array in the JavaScript code.