Continuity mistake: When the mother and father are frozen in the park, the dad is holding a napkin up near his chin; but in the subsequent shots his hand is on his lap.
Last Laugh - S1-E12
Continuity mistake: When Gia is pulled into the urn she is in her civilian clothes, but when the urn is destroyed, she comes out in her ranger uniform.
Character mistake: Troy calls for the "Twistornado" but his card reads "Windrive"; the cards have always read exactly what the rangers called for.