Over the summer of 2025, I built my own tokenizer and transformer architecture, and trained it on Mario Maker 2 level names and level descriptions. I plan to outline this process in more depth in the future. For now, I will leave you with some of the end results:

mario entered a secret castle on the first level. enjoy! enjoy! :) :):) :) :]] 

mario entered a cave in the castle of the forest. have fun! :3 mario level (d)

mario entered a free for the key! you need to get to the goal possible.  

mario entered a level from the super mario land. have fun! :) :)         

mario entered a cave in the sky. enjoy! good luck! (:]) -) |    

mario entered a dangerous mountain and defeat the boss battle. still be careful! what could be 

mario entered a little lake in the desert! watch out for the poison and run through the 

mario entered a lot of the pinball flower and get to the end to reach the goal

mario entered a cave and defeat him to escape the desert and escape the fall kingdom! can you

mario entered a strange gristmas you can make it to the end before you have