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Nightmare Fuel: Disney's Villains' Revenge
The Snow White level. You have a limited amount of time, and you have to go through a book full of recipes and spells and sorting through ingredients in a dimly lit dungeon while Snow White is fading away, and every time it takes you too long, Queen Grimhilde will go down in the dungeon and put one of the dwarfs "to sleep". It's a pretty stressful experience for a little kid.
You can also mess up the potion and cause Prince Charming to arrive instead of Snow White's prince. He finds that the slipper is too big for her foot, and leaves.
Also, whenever your time is up, the Queen suddenly comes back, takes a potion, turns into the hag, and goes back down to put one of the seven dwarfs to sleep. What makes it worse is that nothing indicates when she is coming back, and if you don't have a watch near you, she'll scare you everytime she comes.
When you defeat each villain, there's a wacky little animated sequence of their defeat. Except for Queen Grimhilde. After she gets hit with her magical ammunition, she transforms into an old hag. She then looks at her reflection in the Magic Mirror, which shatters because of her appearance, so she screams at the top of her lungs with bulging eyes.
If you follow the white rabbit in the Alice in Wonderland level before grabbing Alice's head you're treated to a cutscene where the rabbit goes through a tiny door and escape the Queen of Hearts' maze. But you don't. You're stopped by guards and the Queen herself who proceeds to walk up to the camera until her face is literally inches away from it and screams her iconic "Off With Their Heads" line as her mouth engulfs the camera and it all fades to black. Safe to say this player got the message and never tried that again.
The fact that Alice actually got beheaded this time! The good news is that she's still alive and can still get her head back on, apparently because Wonderland is just that weird.