When Mario, Luigi, Toad, and the princess find the music box, it's on a gold pedestal on top of a statue. When Mario is climbing up the statue to retrieve the box, the box is gone. Then in the next shot, it's back on the pedestal when Mario grabs it.
When Koopa and Luigi are fighting over the music box, Luigi ends up pulling the crank out. When Koopa is holding the music box, the crank is back in the box. Then in the next shot, Luigi has the crank. Then when Big Mouth along with Bully and Cheatsy pull the box off Koopa's claw and the box flies off the doom ship all the way to the ground and hits a Goomba, the crank is back in.
In the shot of Bully giving Koopa the music box, Bully's shell is green.
When Bully is playing the music box while he, Cheasty, and Big Mouth are carrying the Mario Brothers back to Koopa's castle, Cheatsy's head color flashes brown periodically.
When Bully is hauling Big Mouth away after they overhear Mario and Luigi, the star on Big Mouth's right eye is missing.
When Cheatsy, Bully, and Big Mouth are overhearing Mario and Luigi, Cheatsy's head is brown in one shot.
There's one shot after the dry bones troopa warns Koopa that the Marios are in Dark Land where Cheatsy and Bully's heads turn brown instead of their normal head colors.