So, I will be running some Mouse Guard quick shot (90 minute) sessions at the Go Play Brisbane 2018 gaming convention in September this year.
To test out the system I ran a bunch of young (pre-teen) children through it: my daughter and the kids of a few friends. I figured if it can survive them, then it will survive any players.
I played the introductory scenario "Find the Grain Peddler".
Here are their character sheets; I let the players pick their own cloak colour: