The eye piece of Cheatsy's scope is red. In the close up shot of him using the scope after the Wizard King says "a Koopa?," the eye piece is turquoise. In the shot of Cheatsy, King Koopa, and Koopa kids, the eye piece is still turquoise.
When the Mario brothers are running to lead the jumping blocks away from the house, Mario is carrying Toad. In the POV shot of Mario and Luigi running from the house, Toad is nowhere to be seen. When they stop at the edge of a cliff, Mario is still carrying Toad.
When Kootie Pie uses the want to place the Princess under house arrest by raising the fence, the planks are close together with no spaces between them. In other shots showing the fence, the planks have spaces in between them. Then when Cheatsy uses the wand to raise the fence out of the ground to hit Toad, the planks are close together again with out spaces between them.