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
Starring: Walker Boone, Tony Rosato, Tracey Moore
Audio problem: When King Koopa says that he will be upstairs, his mouth is not moving. (00:05:42)