The main four go hunting for a treasure chest to play a game with, but they end up encountering a savage one with carnivorous tendencies.
"Let's Play Mysterious Box" contains the following tropes:
- Big Damn Heroes: Pretty shows up with a bulldozer to save the main four.
- Disproportionate Retribution: Pretty tries to attack Mr. Cat with the aforementioned bulldozer because he didn't thank her for helping him.
- Furry Reminder: The main four, a tree frog, squirrel, duck, and cat, hide in a tree when threatened.
- Monster Is a Mommy: The wild treasure chest which tries to attack the main four is a mother with kids.
- Mood Whiplash: Pretty is apathetic to the idea of the others being stuck in an environment full of wild "animals" until she hears that Mr. Cat is with them, at which point she suddenly becomes determined to go there immediately.
