This simple steps will show u how to unlock secret in game character - Duck

Step #1

You must collect all the "patches" in the game

* Patches are in-game (mostly hidden) piles of stuff
(for example: pile of leaves in forest biome levels, pile of stones in dark/mine levels etc.)

- This image shows you how many patches are in this particular level (you can see that for any in game level)

+When one or more of the patches are missing, those icons will be black so you will need to complete the same level few more times

Step #2

When you collect all of the patches, the duck will unlock
- You will find it in "Characters" section in game

Step #3

You need to have 2500 Brocoins to unlock it :)

Step #4

Enjoy your new character