Continuity mistake: When Toad General calls for the council's attention and announces that Bowser found the Super Star, note his shirt buttons. Then, when he says that the Kongs will never agree because their mad king doesn't make alliances, Toad General's shirt is backwards, his buttons are on the opposite side. (00:24:55 - 00:25:35)
Continuity mistake: In the beginning scene where Dog is in his apartment, the number of ports and wires plugged into his Atari 2600 constantly changes. (00:01:54 - 00:02:46)