In Mobile Version double click on the chest to release the egg.
In Computer Version type “OPEN” on your keyboard on Level 1-8 to release the Golden Egg
(Quite a few computer users have had trouble getting the egg simply by typing “OPEN”. Some possible suggestions:
1. Depress the Caps Lock key before typing “OPEN”
2. Hold the left mouse button down over the chest then type “OPEN”
3. Shoot a bird first and then type “OPEN”
4. Look through the comment sections of this YouTube video for alternate suggestions
5. Make sure you don’t already have the egg!)