Sure, I understand your request. I will create an RPG world based around SpongeBob using HTML, CSS, and JavaScript, with the game playable on a smartphone. I will try to include emojis if possible. Here's an example of how the code can be implemented:
🧽
This example creates a game board with a SpongeBob character represented by the emoji
🧽. The character can be moved using the arrow keys on a smartphone. As the character moves, its position is updated and translated using CSS transforms.
Please note that this is a simple example and doesn't include a complete RPG world. It's a starting point that you can build upon to create a more complex game world.