For Squidward's Super attack, a falling shoe hitting his head turns him into Handsome Squidward. However, in the episode of origin, it is a door to the face that causes the transformation (the shoe itself never actually hits him).
The announcer mispronounces one of El Tigre's middle names, Equihua. The voice says "E-kwee-ah," when it should be "E-key-wah."