Other mistake: When Mario and Princess Toadstool enter the dungeon, the hatch they enter through briefly appears closed, but they still enter it regardless. (00:04:16)
The Adventures of Super Mario Bros. 3 (1990)
1 other mistake in Never Koop a Koopa - chronological order
Starring: Walker Boone, Tony Rosato, Tracey Moore
Audio problem: When the oil lands on the Koopas, Cheatsy has Kooky's voice. (00:10:29)