7 Glitches In Video Games That Became Essential Features In Their Franchise

7. Zoo Tycoon - Killer Penguins

Blue Fang Games

Zoo Tycoon is a business simulation game series that revolves around the building and maintenance of a successful zoo. You have to build and upgrade animal habitats, buy creatures, allocate staff and resources for animal care, provide drink and food stands for customers and fulfil your wildest, capitalist fantasies by taking in millions of virtual dollars profit.

In the first game of the series there is an entertaining glitch that meant an emperor penguin would savagely murder any other non-penguin herbivores placed in the same exhibit. This was fixed in the sequel, but the developers kept the spirit of the glitch alive by introducing the ‘Killer Penguin’. If you fail the lab cloning mini-game, you have a chance of receiving a Killer Penguin Egg. Complete with sharp teeth and glowing, yellow eyes, the beast will kill any animal it’s placed near, including Orca Whales, a T-Rex, or even a stray customer.

They can’t be sold either, meaning you’re trapped with the monster forever. Ain’t life a glitch like that?


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