Zoo Tycoon 2: Extinct Animals Quagga
Release all extinct animals into the wild to unlock the Quagga.
Lab accident animals
Get an animal creation mini-game score lower than 50% to unlock one of the following animals:
- Giant Bullfrog
- Giant Monarch Butterfly
- Killer Penguin
- Red Squirrel
- Springhare
Note: Except for the Killer Penguin, all of these animals are just selectable ambients.