The Deadly Experiments of Dr. Eeek

The Deadly Experiments of Dr. Eeek is the fourth book in the Give Yourself Goosebumps gamebook series. It was published in 1996.

The holographic prism design consists of orange colored dots that are filled in and not filled in. The cover illustration consists of a Vamporilla (drawn to look like a chimpanzee) in a lab coat on top of a lab table, mixing green slime in beakers, petri dishes, test tubes, and bunsen burners.

Blurb
HE'S OUT TO TAKE OVER...YOUR LIFE!

Top secret and dangerous. That's what your mom, a famous scientist calls the research she's been doing at the labs of Dr. Eeek. You're dying to know what it's all about. Then one day you get lost in the labs. Before you know it, you've become a human guinea pig in Dr. Eeek's deadly experiments!

If you choose one lab, you'll meet a dog wearing sneakers. He's half dog, half kid. And now he's after you! If you choose another lab, you get lost in a maze--a maze that just happens to be the home of an enormous rat!

The choice is yours in this GOOSEBUMPS adventure that's packed with over 20 super spooky endings!

Plot
You and your friend, Sam, are waiting for your mother in the labs of esteemed scientist Dr. Eeek, which is high in a skyscraper. The secretary leaves and you decide to search for your mother. You encounter Dr. Eeek, who is willing to pay you to help out in some experiments. But these experiments aren't exactly safe... Some of the experiments include being attacked by a blob that grows, getting lost in a maze which is inhabited by a massive rat, meeting a half-human half-dog hybrid, and getting lost in a virtual reality universe.

List of endings
There are seventeen bad endings, four ambiguous endings, and five good endings.

Ambiguous endings
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Good endings
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Trivia

 * The "Vamporilla" on the cover has little to do with the actual story.
 * On page 76, there is a Goosebumps trivia question on My Hairiest Adventure. There are 2 ways to reach this page.
 * The ending where you turn into Dr. Eeek would not be so easily lost if this wasn't a gamebook. The main character would have known things about about their life that Dr. Eeek would not, and be able to tell Sam about them.
 * This book is tied with All-Day Nightmare as the book that has the most good/ambiguous endings, and this book has the smallest number of pages.
 * The title of this book is structured similarly to that of another Give Yourself Goosebumps book, The Creepy Creations of Professor Shock.
 * The singing frog mentioned in one of the endings may be a reference to Michigan J. Frog, a singing dancing frog seen in a Looney Tunes short and in a few Warner Brothers shows since.
 * Despite the blurb strongly implying that the half-dog half-kid (named Joseph in the actual story) is an enemy the reader must escape from, he is a good character in the book, and even necessary to meet in order to achieve one of the good choices.
 * Early on, this book references Dr. Jekyll and Mr. Hyde, another story about a mad scientist.
 * Dominick's pizza is a possible parody of Domino's Pizza.

References in other Goosebumps media

 * Vamporilla is mentioned in an early draft of the Goosebumps film.
 * Dr. Eek is mentioned in Goosebumps HorrorTown.