Congratulations on finishing the game jam!
First off I want to give props to the audio on this entry, it is always difficult to compose something for these jams with such a tight turnaround. The environment was well done too, I could envision the full version of this game going through the rest of the bedroom challenging various board game pieces and rogue socks to battle.
The battle mechanics were not immediately clear without instructions, but after watching for a fair bit of auto-action I think I understood it as the rock-paper-scissors would determine the winner then the difference of the dice plus two would be the damage inflicted. Regardless, I lost every attempt at the boss (mainly because they rolled all 6s hah). But there is an opportunity for some extra mechanics that could keep the momentum of a run, here are a few ideas:
If the player had a choice of a special limited-use die as a "saving throw" it could help the player defeat the boss and any future tough bosses.
Ending the run after losing a battle without ending the players' whole game is a needed change. I suspect this was just a bug requiring the page refresh but it did turn the game into a one-shot.
Add in the ability to choose your opponents (say I wanted to grind Henrys or Stacys with predictable win-tables or choose a specific set of dice to fight them with).
Add a purpose for a low-rolling die, otherwise, the player will just only have dice with all 6s. Could be featured in further dice types beyond just rock-paper-scissors (maybe a die that reverses all damage so the player needs to undershoot and lose in order to win).
Altogether this is a great jam entry, congrats once again!