Sleep Cute: She intentionally falls asleep on Bernard's shoulder.
Spoiled Sweet: She's a rich, high-class Hungarian diplomat.. and also a kind and brave adventurer venturing into danger to save human children.
Unresolved Sexual Tension: She fancies Bernard right from the start and does not waste any time being subtle with her affections, but he's hesitant because she's so much more powerful and important than him. He finally gives in though after they save Penny together. They progress as a couple slowly and mostly off-screen but Bernard finally proposes to her post-climax in DU and she gleefully accepts, making them the Official Couple.
Companion Cube: She carries her teddy bear everywhere with her and treats it like her own child. Medusa later holds the bear hostage when she sends Penny into the caves again, telling her she'd better find the diamond or she'll never get the teddy back. It works.
Damsel out of Distress: She managed to arrange a rescue for herself with a Message in a Bottle. Normally that would be no easy task given how close a watch Medusa keeps over her, but it's implied she sent the bottles out only when Medusa wasn't around.
Expecting Someone Taller: Penny is surprised, to say the least, that her rescue party is a pair of mice. She was apparently expecting the police.
Generic Cuteness: Medusa calls Penny "homely" at one point. Even if Medusa wasn't merely saying that to be a jerk (and she was), Penny certainly isn't drawn homely.
Hair of Gold, Heart of Gold: Penny has golden-brown hair, and aside from sneaking extra ginger snaps at lunch once, she's completely nice and innocent. (Besides, she snuck those ginger snaps to give to Rufus.)
Panty Shot: Twice, but played completely innocently in both cases. First, the alligators rip her panties by accident when catching her for Medusa, and second, she shows off said ripped panties to Bernard and Bianca as a demonstration of how nasty Medusa's alligators can be.
Expy: One early draft of the film cast Cruella de Vil as the villain. Consequently, Madame Medusa bears more than a passing resemblance to her, in both appearance and mannerisms, and drives the same car. Cruella was even considered to return for the movie, but this was ultimately dismissed because Disney was not interested in doing sequels. Interestingly, this was the result of a rivalry between the villainesses' lead animators. When veteran animator Marc Davis drew Cruella the Vil for the Dalmatians movie in 1961, everyone was showering him with praise. His friend and colleague Milt Kahl then promised Davis he'd draw a villain that would blow Davis' Cruella out of the water. Hence, Milt Kahl created Medusa. He so badly wanted her to be perfect he did almost all of the animation on her himself. Also, Kahl based Medusa on his ex-wife.
It's hard to tell, there's the possibility he could be a potoroo, bettong, or rat-kangaroo (not to be confused with kangaroo rats). All these species are the marsupial equivalent of rats. And virtually unheard of in media.
Bald of Evil: A variant; McLeach has notable male-pattern baldness.
Batman Gambit: He played this card on Cody when he realized that psychologically torturing the boy wasn't enough. By pretending that the Eagle had been shot by another hunter and acting upset over it, Cody played right into his hands by leading him to the eagle's nest.
Book Dumb: For someone who barely got through the third grade, he's pretty smart.