Audio problem: When the Mario Bros. make their comeback, the referee's mouth moves, but no sound can be heard. In the same shot, the Sledge Bros' green faces briefly turn white. (00:10:17)
Continuity mistake: When the Sledge Bros. approach Mario and Luigi in a corner, Mario's brown hair turns black. This also happens when Princess Toadstool tosses the Invincible Stars to them and they make their comeback. (00:09:54)
Continuity mistake: When the Mario Bros. are flipping towards the Sledge Bros, the pitfall trap is on their side, but in the next shot, it is on the Sledge Bros'. (00:10:28)
Continuity mistake: When Princess Toadstool says she will get some help, Toad is sitting beside her, but in the next shot, he is replaced by someone else. (00:09:35)
Continuity mistake: When Mario and Luigi say that they are not close to quitting, Luigi is inside the ring, but when a Sledge Bro. squirts some liquid at him, he is outside of it. (00:09:49)
Continuity mistake: When Cheatsy is under the ring, his right cheek changes from cream-coloured to green. (00:08:53)
Continuity mistake: When Mario falls onto King Koopa, the string attached to the booby trap disappears. (00:08:55)
Revealing mistake: When Mario gets off King Koopa, his left leg disappears briefly. (00:08:59)
Continuity mistake: When the referee asks who rang the bell, Mario's mask disappears. This also happens when he is pushed into a corner by some liquid. (00:08:46 - 00:09:41)
Continuity mistake: While Mario is in his wrestling outfit, his legs switch from not being covered to covered several times. (00:08:24 - 00:10:10)
Continuity mistake: When Mario asks why Toad is crying, Toad's red vest turns the same colour as his skin. In the same shot, Mario speaks without moving his mouth, while Toad's left arm occasionally detaches from his body. (00:06:14)
Continuity mistake: When Mario approaches his brother to tell him that they can get Toad's money, the red spots on Toad's cap turn grey. (00:06:50)
Other mistake: In several shots during the match, the wrestlers appear to be outside of the ring, but the ropes make them appear as though they are inside it. (00:08:07 - 00:11:00)
Revealing mistake: When Toad asks how he can face the orphans, the door to the orphanage is misplaced. (00:02:33)
Continuity mistake: When King Koopa is first seen looking at the flyer, it is white, but in the next shot, it turns purple. (00:00:57)
Continuity mistake: When Cheatsy takes the tape off Toad's cousins, his orange hands turn green like King Koopa's. In the same shot, sclerae appear on the cousins' eyes, while the Mushroom Marauder's eyelids change from yellow to white. (00:05:02)
Continuity mistake: When the Sledge Brothers approach Mario and Luigi when they are at the corner of the ring, Luigi's mask goes from red to skin colour. (00:09:54)
