The Secret Island of Dr. Quandary/YMMV

• Good Bad Bugs: Getting blown up by a flamethrower in the Acid Test, once you have the flask of green gas, destroys the Acid Test... but the player still has the flask of green gas. This saves a lot of the trouble of escaping the Acid Test.
• Nightmare Fuel: The sequence where the player takes the doll only to be sucked into its mouth in a color-shifting vortex was noted to give children and adults both nightmares. Even in modern-day Lets Plays, the players will frequently warn for the scary scene coming up and include an option to skip it. The Uncanny Valley look of the dolls and the more realistic characters is also pretty good fuel.
• Surprise Difficulty / That One Puzzle : An algebra minigame in my kiddie Edutainment Game? Tax Factor regularly stumps adults doing Lets Plays or walkthroughs unless played as B. Ginner.
• Uncanny Valley: If there's one thing players remember about this game, it's this. Possibly deliberate with the dolls, since they are... dolls.