How do I collect animals in the game?

To collect different animals in the game, you will need to destroy as many Badniks in each race. Once you have destroyed them, you will see an animal fly out and be collected by your character.
Each animal you obtain from a Badnik will be at random once you have unlocked them.
To unlock an animal, you will need to unlock each build area in the game.
Each character will give you double reward for an animal which they are associated to. To find out what animal they will double, you will need to open the character menu, located in the main menu.