Sure! I have created a simple JRPG-style game that involves creating a character, leveling them up, and battling through a dungeon with 5 levels, with the final level being the boss fight.
Here's the implementation as a single HTML file:
JRPG Dungeon Game
To play the game, simply create a new HTML file and paste the code above into it. Save the file with a `.html` extension, open it in your web browser or smartphone browser, and you'll be able to play the game. Follow the prompts displayed to create your character, battle enemies, level up, and defeat the boss.
Note: Since it's a text-based game, I haven't included any pictograms. However, you can enhance the visual elements using CSS and add images/icons as per your choice.