Chekhov's Gun: The kids' hopscotch game turns out to be the key to the secret code to releasing Mondo Mouse. The code pad is even shaped to look like a hopscotch path.
Nose Nuggets: When one of the symbols our heroes find is a hand pointing to something, Wheezie playfully entertains the idea that the symbol is telling them to pick their noses, much to Zak's disgust.
3D Comic Book: Max's Mondo Mouse comic is a 3D comic that requires special glasses to view properly.
Widely-Spaced Jail Bars: The gate to the room Mondo Mouse is trapped in apparently has bars far enough for him to squeeze right through and escape.
