Thank you for your feedback :-) thematic cohesion is a frequent weakness of my games, and you're right on point about this game too. It's something i should work more on next jam.
I really like your thematic explanation of 'you show the good example, other kids start cleaning as well, meaning your abilities become more powerful'. If I make another version I'll be sure to include it.
For 'reroll until you find a square without mud' flipping a 6/1 would result to 1/6 which also has mud. I would keep the one rule rather than make two rules with conditions, but what you did is a perfectly fine shortcut.
You're right about the 'roll another time', there was another comment about it.
For 'you win if you're carrying garbage' i imagined it that the ground of the playground is pristine so you win. Does that still not fit thematically for you?
You are right that i should have added more examples to situations like the upgrade cost. I uploaded 15 mins before the deadline, which is my bad.
You don't have to use all actions, and you can't pick diagonally if you can move diagonally and pick up from adjacent. These are indeed not covered.
I appreciate your comments, they pointed out a lot of things i didn't know! Cheers!